Home / 19,920,205.20-29,856,688.20-17,888,919.60

Finding the Fourth Proportional to 19,920,205.20, 29,856,688.20 and 17,888,919.60

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Solution

The fourth proportional to 19,920,205.20, 29,856,688.20 and 17,888,919.60 is: 26,812,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,205.20 : 29,856,688.20 = 17,888,919.60 : x
  2. Step 2: Convert to fraction form
    19,920,205.20/29,856,688.20 = 17,888,919.60/x
  3. Step 3: Cross multiply
    19,920,205.20x = 29,856,688.20 × 17,888,919.60
  4. Step 4: Simplify right side
    19,920,205.20x = 534,103,894,732,068.75
  5. Step 5: Solve for x
    x = 534,103,894,732,068.75/19,920,205.20
  6. Step 6: Final answer
    x = 26,812,168.32

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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.