Home / 47,156,989.68-70,731,432.64-28,708,146.72

Finding the Fourth Proportional to 47,156,989.68, 70,731,432.64 and 28,708,146.72

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Solution

The fourth proportional to 47,156,989.68, 70,731,432.64 and 28,708,146.72 is: 43,059,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,156,989.68 : 70,731,432.64 = 28,708,146.72 : x
  2. Step 2: Convert to fraction form
    47,156,989.68/70,731,432.64 = 28,708,146.72/x
  3. Step 3: Cross multiply
    47,156,989.68x = 70,731,432.64 × 28,708,146.72
  4. Step 4: Simplify right side
    47,156,989.68x = 2,030,568,345,944,916.75
  5. Step 5: Solve for x
    x = 2,030,568,345,944,916.75/47,156,989.68
  6. Step 6: Final answer
    x = 43,059,753.38

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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.