Home / 1,210,809,467.72-1,670,917,001.48-653,892,461.12

Finding the Fourth Proportional to 1,210,809,467.72, 1,670,917,001.48 and 653,892,461.12

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Solution

The fourth proportional to 1,210,809,467.72, 1,670,917,001.48 and 653,892,461.12 is: 902,371,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,809,467.72 : 1,670,917,001.48 = 653,892,461.12 : x
  2. Step 2: Convert to fraction form
    1,210,809,467.72/1,670,917,001.48 = 653,892,461.12/x
  3. Step 3: Cross multiply
    1,210,809,467.72x = 1,670,917,001.48 × 653,892,461.12
  4. Step 4: Simplify right side
    1,210,809,467.72x = 1,092,600,030,413,383,808
  5. Step 5: Solve for x
    x = 1,092,600,030,413,383,808/1,210,809,467.72
  6. Step 6: Final answer
    x = 902,371,561.79

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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.