Home / 20,341,909.13-28,072,136.55-11,049,660.41

Finding the Fourth Proportional to 20,341,909.13, 28,072,136.55 and 11,049,660.41

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Solution

The fourth proportional to 20,341,909.13, 28,072,136.55 and 11,049,660.41 is: 15,248,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341,909.13 : 28,072,136.55 = 11,049,660.41 : x
  2. Step 2: Convert to fraction form
    20,341,909.13/28,072,136.55 = 11,049,660.41/x
  3. Step 3: Cross multiply
    20,341,909.13x = 28,072,136.55 × 11,049,660.41
  4. Step 4: Simplify right side
    20,341,909.13x = 310,187,575,860,649
  5. Step 5: Solve for x
    x = 310,187,575,860,649/20,341,909.13
  6. Step 6: Final answer
    x = 15,248,695.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.