Home / 28,539,493.20-39,384,300.87-15,486,420.15

Finding the Fourth Proportional to 28,539,493.20, 39,384,300.87 and 15,486,420.15

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Solution

The fourth proportional to 28,539,493.20, 39,384,300.87 and 15,486,420.15 is: 21,371,151.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539,493.20 : 39,384,300.87 = 15,486,420.15 : x
  2. Step 2: Convert to fraction form
    28,539,493.20/39,384,300.87 = 15,486,420.15/x
  3. Step 3: Cross multiply
    28,539,493.20x = 39,384,300.87 × 15,486,420.15
  4. Step 4: Simplify right side
    28,539,493.20x = 609,921,830,586,830.50
  5. Step 5: Solve for x
    x = 609,921,830,586,830.50/28,539,493.20
  6. Step 6: Final answer
    x = 21,371,151.42

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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.