Home / 20,732,963.60-31,099,445.40-9,948,429.20

Finding the Fourth Proportional to 20,732,963.60, 31,099,445.40 and 9,948,429.20

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Solution

The fourth proportional to 20,732,963.60, 31,099,445.40 and 9,948,429.20 is: 14,922,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,963.60 : 31,099,445.40 = 9,948,429.20 : x
  2. Step 2: Convert to fraction form
    20,732,963.60/31,099,445.40 = 9,948,429.20/x
  3. Step 3: Cross multiply
    20,732,963.60x = 31,099,445.40 × 9,948,429.20
  4. Step 4: Simplify right side
    20,732,963.60x = 309,390,630,721,165.62
  5. Step 5: Solve for x
    x = 309,390,630,721,165.62/20,732,963.60
  6. Step 6: Final answer
    x = 14,922,643.80

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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.