Home / 21,318,454.20-31,968,350.10-8,534,710.20

Finding the Fourth Proportional to 21,318,454.20, 31,968,350.10 and 8,534,710.20

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Solution

The fourth proportional to 21,318,454.20, 31,968,350.10 and 8,534,710.20 is: 12,798,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,454.20 : 31,968,350.10 = 8,534,710.20 : x
  2. Step 2: Convert to fraction form
    21,318,454.20/31,968,350.10 = 8,534,710.20/x
  3. Step 3: Cross multiply
    21,318,454.20x = 31,968,350.10 × 8,534,710.20
  4. Step 4: Simplify right side
    21,318,454.20x = 272,840,603,675,641
  5. Step 5: Solve for x
    x = 272,840,603,675,641/21,318,454.20
  6. Step 6: Final answer
    x = 12,798,329.61

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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.