Home / 99,402,724.64-137,142,879.36-58,120,389.92

Finding the Fourth Proportional to 99,402,724.64, 137,142,879.36 and 58,120,389.92

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Solution

The fourth proportional to 99,402,724.64, 137,142,879.36 and 58,120,389.92 is: 80,186,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,402,724.64 : 137,142,879.36 = 58,120,389.92 : x
  2. Step 2: Convert to fraction form
    99,402,724.64/137,142,879.36 = 58,120,389.92/x
  3. Step 3: Cross multiply
    99,402,724.64x = 137,142,879.36 × 58,120,389.92
  4. Step 4: Simplify right side
    99,402,724.64x = 7,970,797,623,154,721
  5. Step 5: Solve for x
    x = 7,970,797,623,154,721/99,402,724.64
  6. Step 6: Final answer
    x = 80,186,912.90

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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.