Home / 515,001,689.29-710,721,020.88-295,027,630.57

Finding the Fourth Proportional to 515,001,689.29, 710,721,020.88 and 295,027,630.57

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Solution

The fourth proportional to 515,001,689.29, 710,721,020.88 and 295,027,630.57 is: 407,148,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,001,689.29 : 710,721,020.88 = 295,027,630.57 : x
  2. Step 2: Convert to fraction form
    515,001,689.29/710,721,020.88 = 295,027,630.57/x
  3. Step 3: Cross multiply
    515,001,689.29x = 710,721,020.88 × 295,027,630.57
  4. Step 4: Simplify right side
    515,001,689.29x = 209,682,338,781,489,152
  5. Step 5: Solve for x
    x = 209,682,338,781,489,152/515,001,689.29
  6. Step 6: Final answer
    x = 407,148,836.88

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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.