Home / 77,979,040.17-107,610,680.74-42,696,204.22

Finding the Fourth Proportional to 77,979,040.17, 107,610,680.74 and 42,696,204.22

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Solution

The fourth proportional to 77,979,040.17, 107,610,680.74 and 42,696,204.22 is: 58,920,545.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979,040.17 : 107,610,680.74 = 42,696,204.22 : x
  2. Step 2: Convert to fraction form
    77,979,040.17/107,610,680.74 = 42,696,204.22/x
  3. Step 3: Cross multiply
    77,979,040.17x = 107,610,680.74 × 42,696,204.22
  4. Step 4: Simplify right side
    77,979,040.17x = 4,594,567,601,128,260
  5. Step 5: Solve for x
    x = 4,594,567,601,128,260/77,979,040.17
  6. Step 6: Final answer
    x = 58,920,545.71

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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.