Home / 72,324,186.30-99,808,127.73-39,285,078.87

Finding the Fourth Proportional to 72,324,186.30, 99,808,127.73 and 39,285,078.87

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Solution

The fourth proportional to 72,324,186.30, 99,808,127.73 and 39,285,078.87 is: 54,213,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,324,186.30 : 99,808,127.73 = 39,285,078.87 : x
  2. Step 2: Convert to fraction form
    72,324,186.30/99,808,127.73 = 39,285,078.87/x
  3. Step 3: Cross multiply
    72,324,186.30x = 99,808,127.73 × 39,285,078.87
  4. Step 4: Simplify right side
    72,324,186.30x = 3,920,970,169,740,084
  5. Step 5: Solve for x
    x = 3,920,970,169,740,084/72,324,186.30
  6. Step 6: Final answer
    x = 54,213,816.57

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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.