Home / 55,518,439.20-83,280,924.72-21,439,963.68

Finding the Fourth Proportional to 55,518,439.20, 83,280,924.72 and 21,439,963.68

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Solution

The fourth proportional to 55,518,439.20, 83,280,924.72 and 21,439,963.68 is: 32,161,206.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,518,439.20 : 83,280,924.72 = 21,439,963.68 : x
  2. Step 2: Convert to fraction form
    55,518,439.20/83,280,924.72 = 21,439,963.68/x
  3. Step 3: Cross multiply
    55,518,439.20x = 83,280,924.72 × 21,439,963.68
  4. Step 4: Simplify right side
    55,518,439.20x = 1,785,540,001,233,614
  5. Step 5: Solve for x
    x = 1,785,540,001,233,614/55,518,439.20
  6. Step 6: Final answer
    x = 32,161,206.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.