Home / 77,114,128.29-115,690,337.60-38,270,810.76

Finding the Fourth Proportional to 77,114,128.29, 115,690,337.60 and 38,270,810.76

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Solution

The fourth proportional to 77,114,128.29, 115,690,337.60 and 38,270,810.76 is: 57,415,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,114,128.29 : 115,690,337.60 = 38,270,810.76 : x
  2. Step 2: Convert to fraction form
    77,114,128.29/115,690,337.60 = 38,270,810.76/x
  3. Step 3: Cross multiply
    77,114,128.29x = 115,690,337.60 × 38,270,810.76
  4. Step 4: Simplify right side
    77,114,128.29x = 4,427,563,016,858,758
  5. Step 5: Solve for x
    x = 4,427,563,016,858,758/77,114,128.29
  6. Step 6: Final answer
    x = 57,415,717.65

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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.