Home / 67,280,772.80-100,921,159.20-45,757,412.30

Finding the Fourth Proportional to 67,280,772.80, 100,921,159.20 and 45,757,412.30

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Solution

The fourth proportional to 67,280,772.80, 100,921,159.20 and 45,757,412.30 is: 68,636,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,280,772.80 : 100,921,159.20 = 45,757,412.30 : x
  2. Step 2: Convert to fraction form
    67,280,772.80/100,921,159.20 = 45,757,412.30/x
  3. Step 3: Cross multiply
    67,280,772.80x = 100,921,159.20 × 45,757,412.30
  4. Step 4: Simplify right side
    67,280,772.80x = 4,617,891,091,308,338
  5. Step 5: Solve for x
    x = 4,617,891,091,308,338/67,280,772.80
  6. Step 6: Final answer
    x = 68,636,118.45

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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.