Home / 77,979,040.91-107,610,681.75-42,696,204.96

Finding the Fourth Proportional to 77,979,040.91, 107,610,681.75 and 42,696,204.96

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Solution

The fourth proportional to 77,979,040.91, 107,610,681.75 and 42,696,204.96 is: 58,920,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979,040.91 : 107,610,681.75 = 42,696,204.96 : x
  2. Step 2: Convert to fraction form
    77,979,040.91/107,610,681.75 = 42,696,204.96/x
  3. Step 3: Cross multiply
    77,979,040.91x = 107,610,681.75 × 42,696,204.96
  4. Step 4: Simplify right side
    77,979,040.91x = 4,594,567,723,883,332
  5. Step 5: Solve for x
    x = 4,594,567,723,883,332/77,979,040.91
  6. Step 6: Final answer
    x = 58,920,546.73

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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.