Home / 72,006,500.79-107,966,012.38-28,234,820.05

Finding the Fourth Proportional to 72,006,500.79, 107,966,012.38 and 28,234,820.05

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Solution

The fourth proportional to 72,006,500.79, 107,966,012.38 and 28,234,820.05 is: 42,335,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006,500.79 : 107,966,012.38 = 28,234,820.05 : x
  2. Step 2: Convert to fraction form
    72,006,500.79/107,966,012.38 = 28,234,820.05/x
  3. Step 3: Cross multiply
    72,006,500.79x = 107,966,012.38 × 28,234,820.05
  4. Step 4: Simplify right side
    72,006,500.79x = 3,048,400,930,384,368
  5. Step 5: Solve for x
    x = 3,048,400,930,384,368/72,006,500.79
  6. Step 6: Final answer
    x = 42,335,079.43

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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.