Home / 49,480,609.12-74,145,160.80-20,711,080.96

Finding the Fourth Proportional to 49,480,609.12, 74,145,160.80 and 20,711,080.96

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Solution

The fourth proportional to 49,480,609.12, 74,145,160.80 and 20,711,080.96 is: 31,034,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,480,609.12 : 74,145,160.80 = 20,711,080.96 : x
  2. Step 2: Convert to fraction form
    49,480,609.12/74,145,160.80 = 20,711,080.96/x
  3. Step 3: Cross multiply
    49,480,609.12x = 74,145,160.80 × 20,711,080.96
  4. Step 4: Simplify right side
    49,480,609.12x = 1,535,626,428,121,018.25
  5. Step 5: Solve for x
    x = 1,535,626,428,121,018.25/49,480,609.12
  6. Step 6: Final answer
    x = 31,034,913.58

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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.