Home / 80,338,080.69-120,506,071.28-19,754,331.57

Finding the Fourth Proportional to 80,338,080.69, 120,506,071.28 and 19,754,331.57

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Solution

The fourth proportional to 80,338,080.69, 120,506,071.28 and 19,754,331.57 is: 29,631,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,338,080.69 : 120,506,071.28 = 19,754,331.57 : x
  2. Step 2: Convert to fraction form
    80,338,080.69/120,506,071.28 = 19,754,331.57/x
  3. Step 3: Cross multiply
    80,338,080.69x = 120,506,071.28 × 19,754,331.57
  4. Step 4: Simplify right side
    80,338,080.69x = 2,380,516,888,164,403
  5. Step 5: Solve for x
    x = 2,380,516,888,164,403/80,338,080.69
  6. Step 6: Final answer
    x = 29,631,239.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.