Home / 1,210,809,466.21-1,670,916,999.41-653,892,459.61

Finding the Fourth Proportional to 1,210,809,466.21, 1,670,916,999.41 and 653,892,459.61

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Solution

The fourth proportional to 1,210,809,466.21, 1,670,916,999.41 and 653,892,459.61 is: 902,371,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,809,466.21 : 1,670,916,999.41 = 653,892,459.61 : x
  2. Step 2: Convert to fraction form
    1,210,809,466.21/1,670,916,999.41 = 653,892,459.61/x
  3. Step 3: Cross multiply
    1,210,809,466.21x = 1,670,916,999.41 × 653,892,459.61
  4. Step 4: Simplify right side
    1,210,809,466.21x = 1,092,600,026,543,403,648
  5. Step 5: Solve for x
    x = 1,092,600,026,543,403,648/1,210,809,466.21
  6. Step 6: Final answer
    x = 902,371,559.72

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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.