Home / 77,678,312.98-107,194,550.91-42,396,371.46

Finding the Fourth Proportional to 77,678,312.98, 107,194,550.91 and 42,396,371.46

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Solution

The fourth proportional to 77,678,312.98, 107,194,550.91 and 42,396,371.46 is: 58,506,162.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,678,312.98 : 107,194,550.91 = 42,396,371.46 : x
  2. Step 2: Convert to fraction form
    77,678,312.98/107,194,550.91 = 42,396,371.46/x
  3. Step 3: Cross multiply
    77,678,312.98x = 107,194,550.91 × 42,396,371.46
  4. Step 4: Simplify right side
    77,678,312.98x = 4,544,659,998,868,241
  5. Step 5: Solve for x
    x = 4,544,659,998,868,241/77,678,312.98
  6. Step 6: Final answer
    x = 58,506,162.46

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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.