Home / 19,928,207.20-29,892,310.80-13,125,762.40

Finding the Fourth Proportional to 19,928,207.20, 29,892,310.80 and 13,125,762.40

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Solution

The fourth proportional to 19,928,207.20, 29,892,310.80 and 13,125,762.40 is: 19,688,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,207.20 : 29,892,310.80 = 13,125,762.40 : x
  2. Step 2: Convert to fraction form
    19,928,207.20/29,892,310.80 = 13,125,762.40/x
  3. Step 3: Cross multiply
    19,928,207.20x = 29,892,310.80 × 13,125,762.40
  4. Step 4: Simplify right side
    19,928,207.20x = 392,359,369,147,753.94
  5. Step 5: Solve for x
    x = 392,359,369,147,753.94/19,928,207.20
  6. Step 6: Final answer
    x = 19,688,643.60

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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.