Home / 1,210,809,501.36-1,670,917,047.84-653,892,494.76

Finding the Fourth Proportional to 1,210,809,501.36, 1,670,917,047.84 and 653,892,494.76

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Solution

The fourth proportional to 1,210,809,501.36, 1,670,917,047.84 and 653,892,494.76 is: 902,371,608.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,809,501.36 : 1,670,917,047.84 = 653,892,494.76 : x
  2. Step 2: Convert to fraction form
    1,210,809,501.36/1,670,917,047.84 = 653,892,494.76/x
  3. Step 3: Cross multiply
    1,210,809,501.36x = 1,670,917,047.84 × 653,892,494.76
  4. Step 4: Simplify right side
    1,210,809,501.36x = 1,092,600,116,949,111,808
  5. Step 5: Solve for x
    x = 1,092,600,116,949,111,808/1,210,809,501.36
  6. Step 6: Final answer
    x = 902,371,608.19

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Half scale
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Double scale
Find fourth proportional to 1,210,809,502.36, 1,670,917,049.22 and 653,892,495.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.