Home / 40,406,385.90-60,647,632.65-21,250,890.30

Finding the Fourth Proportional to 40,406,385.90, 60,647,632.65 and 21,250,890.30

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Solution

The fourth proportional to 40,406,385.90, 60,647,632.65 and 21,250,890.30 is: 31,896,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,406,385.90 : 60,647,632.65 = 21,250,890.30 : x
  2. Step 2: Convert to fraction form
    40,406,385.90/60,647,632.65 = 21,250,890.30/x
  3. Step 3: Cross multiply
    40,406,385.90x = 60,647,632.65 × 21,250,890.30
  4. Step 4: Simplify right side
    40,406,385.90x = 1,288,816,188,399,848.25
  5. Step 5: Solve for x
    x = 1,288,816,188,399,848.25/40,406,385.90
  6. Step 6: Final answer
    x = 31,896,349.05

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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.