Home / 34,138,980.11-47,115,443.53-20,916,931.73

Finding the Fourth Proportional to 34,138,980.11, 47,115,443.53 and 20,916,931.73

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Solution

The fourth proportional to 34,138,980.11, 47,115,443.53 and 20,916,931.73 is: 28,867,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,138,980.11 : 47,115,443.53 = 20,916,931.73 : x
  2. Step 2: Convert to fraction form
    34,138,980.11/47,115,443.53 = 20,916,931.73/x
  3. Step 3: Cross multiply
    34,138,980.11x = 47,115,443.53 × 20,916,931.73
  4. Step 4: Simplify right side
    34,138,980.11x = 985,510,515,745,680.25
  5. Step 5: Solve for x
    x = 985,510,515,745,680.25/34,138,980.11
  6. Step 6: Final answer
    x = 28,867,602.74

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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.