Home / 71,931,920.80-107,897,881.20-26,487,810.40

Finding the Fourth Proportional to 71,931,920.80, 107,897,881.20 and 26,487,810.40

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Solution

The fourth proportional to 71,931,920.80, 107,897,881.20 and 26,487,810.40 is: 39,731,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,931,920.80 : 107,897,881.20 = 26,487,810.40 : x
  2. Step 2: Convert to fraction form
    71,931,920.80/107,897,881.20 = 26,487,810.40/x
  3. Step 3: Cross multiply
    71,931,920.80x = 107,897,881.20 × 26,487,810.40
  4. Step 4: Simplify right side
    71,931,920.80x = 2,857,978,619,787,324.50
  5. Step 5: Solve for x
    x = 2,857,978,619,787,324.50/71,931,920.80
  6. Step 6: Final answer
    x = 39,731,715.60

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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.