Home / 77,806,754.28-107,375,790.51-42,523,785.54

Finding the Fourth Proportional to 77,806,754.28, 107,375,790.51 and 42,523,785.54

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Solution

The fourth proportional to 77,806,754.28, 107,375,790.51 and 42,523,785.54 is: 58,684,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,806,754.28 : 107,375,790.51 = 42,523,785.54 : x
  2. Step 2: Convert to fraction form
    77,806,754.28/107,375,790.51 = 42,523,785.54/x
  3. Step 3: Cross multiply
    77,806,754.28x = 107,375,790.51 × 42,523,785.54
  4. Step 4: Simplify right side
    77,806,754.28x = 4,566,025,087,835,207
  5. Step 5: Solve for x
    x = 4,566,025,087,835,207/77,806,754.28
  6. Step 6: Final answer
    x = 58,684,173.76

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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.