Home / 19,920,403.20-29,856,985.20-17,889,117.60

Finding the Fourth Proportional to 19,920,403.20, 29,856,985.20 and 17,889,117.60

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Solution

The fourth proportional to 19,920,403.20, 29,856,985.20 and 17,889,117.60 is: 26,812,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,403.20 : 29,856,985.20 = 17,889,117.60 : x
  2. Step 2: Convert to fraction form
    19,920,403.20/29,856,985.20 = 17,889,117.60/x
  3. Step 3: Cross multiply
    19,920,403.20x = 29,856,985.20 × 17,889,117.60
  4. Step 4: Simplify right side
    19,920,403.20x = 534,115,119,424,259.56
  5. Step 5: Solve for x
    x = 534,115,119,424,259.56/19,920,403.20
  6. Step 6: Final answer
    x = 26,812,465.29

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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.