Home / 20,220,489.90-30,334,671.45-8,705,934.90

Finding the Fourth Proportional to 20,220,489.90, 30,334,671.45 and 8,705,934.90

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Solution

The fourth proportional to 20,220,489.90, 30,334,671.45 and 8,705,934.90 is: 13,060,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,489.90 : 30,334,671.45 = 8,705,934.90 : x
  2. Step 2: Convert to fraction form
    20,220,489.90/30,334,671.45 = 8,705,934.90/x
  3. Step 3: Cross multiply
    20,220,489.90x = 30,334,671.45 × 8,705,934.90
  4. Step 4: Simplify right side
    20,220,489.90x = 264,091,674,856,588.62
  5. Step 5: Solve for x
    x = 264,091,674,856,588.62/20,220,489.90
  6. Step 6: Final answer
    x = 13,060,597.25

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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.