Home / 21,482,186.40-32,223,279.60-20,656,432.80

Finding the Fourth Proportional to 21,482,186.40, 32,223,279.60 and 20,656,432.80

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Solution

The fourth proportional to 21,482,186.40, 32,223,279.60 and 20,656,432.80 is: 30,984,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482,186.40 : 32,223,279.60 = 20,656,432.80 : x
  2. Step 2: Convert to fraction form
    21,482,186.40/32,223,279.60 = 20,656,432.80/x
  3. Step 3: Cross multiply
    21,482,186.40x = 32,223,279.60 × 20,656,432.80
  4. Step 4: Simplify right side
    21,482,186.40x = 665,618,009,653,010.88
  5. Step 5: Solve for x
    x = 665,618,009,653,010.88/21,482,186.40
  6. Step 6: Final answer
    x = 30,984,649.20

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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.