Home / 20,754,378.10-31,131,567.15-19,578,646.90

Finding the Fourth Proportional to 20,754,378.10, 31,131,567.15 and 19,578,646.90

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Solution

The fourth proportional to 20,754,378.10, 31,131,567.15 and 19,578,646.90 is: 29,367,970.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754,378.10 : 31,131,567.15 = 19,578,646.90 : x
  2. Step 2: Convert to fraction form
    20,754,378.10/31,131,567.15 = 19,578,646.90/x
  3. Step 3: Cross multiply
    20,754,378.10x = 31,131,567.15 × 19,578,646.90
  4. Step 4: Simplify right side
    20,754,378.10x = 609,513,960,673,489.25
  5. Step 5: Solve for x
    x = 609,513,960,673,489.25/20,754,378.10
  6. Step 6: Final answer
    x = 29,367,970.35

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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.