Home / 21,246,753.60-31,832,114.40-12,922,401.60

Finding the Fourth Proportional to 21,246,753.60, 31,832,114.40 and 12,922,401.60

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Solution

The fourth proportional to 21,246,753.60, 31,832,114.40 and 12,922,401.60 is: 19,360,480.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246,753.60 : 31,832,114.40 = 12,922,401.60 : x
  2. Step 2: Convert to fraction form
    21,246,753.60/31,832,114.40 = 12,922,401.60/x
  3. Step 3: Cross multiply
    21,246,753.60x = 31,832,114.40 × 12,922,401.60
  4. Step 4: Simplify right side
    21,246,753.60x = 411,347,366,053,943
  5. Step 5: Solve for x
    x = 411,347,366,053,943/21,246,753.60
  6. Step 6: Final answer
    x = 19,360,480.84

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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.