Home / 71,709,236.45-107,615,669.57-28,553,568.83

Finding the Fourth Proportional to 71,709,236.45, 107,615,669.57 and 28,553,568.83

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Solution

The fourth proportional to 71,709,236.45, 107,615,669.57 and 28,553,568.83 is: 42,850,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,709,236.45 : 107,615,669.57 = 28,553,568.83 : x
  2. Step 2: Convert to fraction form
    71,709,236.45/107,615,669.57 = 28,553,568.83/x
  3. Step 3: Cross multiply
    71,709,236.45x = 107,615,669.57 × 28,553,568.83
  4. Step 4: Simplify right side
    71,709,236.45x = 3,072,811,428,253,531
  5. Step 5: Solve for x
    x = 3,072,811,428,253,531/71,709,236.45
  6. Step 6: Final answer
    x = 42,850,985.18

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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.