Home / 19,928,208.20-29,892,312.30-13,125,763.40

Finding the Fourth Proportional to 19,928,208.20, 29,892,312.30 and 13,125,763.40

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Solution

The fourth proportional to 19,928,208.20, 29,892,312.30 and 13,125,763.40 is: 19,688,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,208.20 : 29,892,312.30 = 13,125,763.40 : x
  2. Step 2: Convert to fraction form
    19,928,208.20/29,892,312.30 = 13,125,763.40/x
  3. Step 3: Cross multiply
    19,928,208.20x = 29,892,312.30 × 13,125,763.40
  4. Step 4: Simplify right side
    19,928,208.20x = 392,359,418,728,709.81
  5. Step 5: Solve for x
    x = 392,359,418,728,709.81/19,928,208.20
  6. Step 6: Final answer
    x = 19,688,645.10

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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.