Home / 71,919,152.87-99,224,145.29-40,957,400.21

Finding the Fourth Proportional to 71,919,152.87, 99,224,145.29 and 40,957,400.21

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Solution

The fourth proportional to 71,919,152.87, 99,224,145.29 and 40,957,400.21 is: 56,507,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,919,152.87 : 99,224,145.29 = 40,957,400.21 : x
  2. Step 2: Convert to fraction form
    71,919,152.87/99,224,145.29 = 40,957,400.21/x
  3. Step 3: Cross multiply
    71,919,152.87x = 99,224,145.29 × 40,957,400.21
  4. Step 4: Simplify right side
    71,919,152.87x = 4,063,963,028,436,808.50
  5. Step 5: Solve for x
    x = 4,063,963,028,436,808.50/71,919,152.87
  6. Step 6: Final answer
    x = 56,507,381.78

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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.