Home / 18,911,325.10-28,366,987.65-16,679,272.90

Finding the Fourth Proportional to 18,911,325.10, 28,366,987.65 and 16,679,272.90

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Solution

The fourth proportional to 18,911,325.10, 28,366,987.65 and 16,679,272.90 is: 25,018,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911,325.10 : 28,366,987.65 = 16,679,272.90 : x
  2. Step 2: Convert to fraction form
    18,911,325.10/28,366,987.65 = 16,679,272.90/x
  3. Step 3: Cross multiply
    18,911,325.10x = 28,366,987.65 × 16,679,272.90
  4. Step 4: Simplify right side
    18,911,325.10x = 473,140,728,365,279.69
  5. Step 5: Solve for x
    x = 473,140,728,365,279.69/18,911,325.10
  6. Step 6: Final answer
    x = 25,018,909.35

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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.