Home / 119,788,686.90-165,308,499-64,784,543.40

Finding the Fourth Proportional to 119,788,686.90, 165,308,499 and 64,784,543.40

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Solution

The fourth proportional to 119,788,686.90, 165,308,499 and 64,784,543.40 is: 89,402,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,788,686.90 : 165,308,499 = 64,784,543.40 : x
  2. Step 2: Convert to fraction form
    119,788,686.90/165,308,499 = 64,784,543.40/x
  3. Step 3: Cross multiply
    119,788,686.90x = 165,308,499 × 64,784,543.40
  4. Step 4: Simplify right side
    119,788,686.90x = 10,709,435,627,854,356
  5. Step 5: Solve for x
    x = 10,709,435,627,854,356/119,788,686.90
  6. Step 6: Final answer
    x = 89,402,729.97

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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.