Home / 72,436,890.30-108,655,335.45-67,335,056.70

Finding the Fourth Proportional to 72,436,890.30, 108,655,335.45 and 67,335,056.70

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Solution

The fourth proportional to 72,436,890.30, 108,655,335.45 and 67,335,056.70 is: 101,002,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,436,890.30 : 108,655,335.45 = 67,335,056.70 : x
  2. Step 2: Convert to fraction form
    72,436,890.30/108,655,335.45 = 67,335,056.70/x
  3. Step 3: Cross multiply
    72,436,890.30x = 108,655,335.45 × 67,335,056.70
  4. Step 4: Simplify right side
    72,436,890.30x = 7,316,313,173,283,271
  5. Step 5: Solve for x
    x = 7,316,313,173,283,271/72,436,890.30
  6. Step 6: Final answer
    x = 101,002,585.05

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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.