Home / 15,420,723.28-21,280,724.88-8,545,320.16

Finding the Fourth Proportional to 15,420,723.28, 21,280,724.88 and 8,545,320.16

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Solution

The fourth proportional to 15,420,723.28, 21,280,724.88 and 8,545,320.16 is: 11,792,612.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,723.28 : 21,280,724.88 = 8,545,320.16 : x
  2. Step 2: Convert to fraction form
    15,420,723.28/21,280,724.88 = 8,545,320.16/x
  3. Step 3: Cross multiply
    15,420,723.28x = 21,280,724.88 × 8,545,320.16
  4. Step 4: Simplify right side
    15,420,723.28x = 181,850,607,336,477.56
  5. Step 5: Solve for x
    x = 181,850,607,336,477.56/15,420,723.28
  6. Step 6: Final answer
    x = 11,792,612.06

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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.