Home / 21,991,332.70-32,986,999.05-13,878,000.10

Finding the Fourth Proportional to 21,991,332.70, 32,986,999.05 and 13,878,000.10

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Solution

The fourth proportional to 21,991,332.70, 32,986,999.05 and 13,878,000.10 is: 20,817,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,332.70 : 32,986,999.05 = 13,878,000.10 : x
  2. Step 2: Convert to fraction form
    21,991,332.70/32,986,999.05 = 13,878,000.10/x
  3. Step 3: Cross multiply
    21,991,332.70x = 32,986,999.05 × 13,878,000.10
  4. Step 4: Simplify right side
    21,991,332.70x = 457,793,576,114,599.88
  5. Step 5: Solve for x
    x = 457,793,576,114,599.88/21,991,332.70
  6. Step 6: Final answer
    x = 20,817,000.15

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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.