Home / 15,047,967.50-20,766,317.19-8,172,498.77

Finding the Fourth Proportional to 15,047,967.50, 20,766,317.19 and 8,172,498.77

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Solution

The fourth proportional to 15,047,967.50, 20,766,317.19 and 8,172,498.77 is: 11,278,114.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,967.50 : 20,766,317.19 = 8,172,498.77 : x
  2. Step 2: Convert to fraction form
    15,047,967.50/20,766,317.19 = 8,172,498.77/x
  3. Step 3: Cross multiply
    15,047,967.50x = 20,766,317.19 × 8,172,498.77
  4. Step 4: Simplify right side
    15,047,967.50x = 169,712,701,692,704.84
  5. Step 5: Solve for x
    x = 169,712,701,692,704.84/15,047,967.50
  6. Step 6: Final answer
    x = 11,278,114.58

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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.