Home / 12,937,963.20-19,406,944.80-8,151,057.60

Finding the Fourth Proportional to 12,937,963.20, 19,406,944.80 and 8,151,057.60

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Solution

The fourth proportional to 12,937,963.20, 19,406,944.80 and 8,151,057.60 is: 12,226,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937,963.20 : 19,406,944.80 = 8,151,057.60 : x
  2. Step 2: Convert to fraction form
    12,937,963.20/19,406,944.80 = 8,151,057.60/x
  3. Step 3: Cross multiply
    12,937,963.20x = 19,406,944.80 × 8,151,057.60
  4. Step 4: Simplify right side
    12,937,963.20x = 158,187,124,904,820.47
  5. Step 5: Solve for x
    x = 158,187,124,904,820.47/12,937,963.20
  6. Step 6: Final answer
    x = 12,226,586.40

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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.