Home / 9,417,919.72-12,996,978.18-5,288,280.52

Finding the Fourth Proportional to 9,417,919.72, 12,996,978.18 and 5,288,280.52

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Solution

The fourth proportional to 9,417,919.72, 12,996,978.18 and 5,288,280.52 is: 7,297,966.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,417,919.72 : 12,996,978.18 = 5,288,280.52 : x
  2. Step 2: Convert to fraction form
    9,417,919.72/12,996,978.18 = 5,288,280.52/x
  3. Step 3: Cross multiply
    9,417,919.72x = 12,996,978.18 × 5,288,280.52
  4. Step 4: Simplify right side
    9,417,919.72x = 68,731,666,528,159.05
  5. Step 5: Solve for x
    x = 68,731,666,528,159.05/9,417,919.72
  6. Step 6: Final answer
    x = 7,297,966.92

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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.