Home / 12,577,979.84-17,357,670.96-7,145,769.92

Finding the Fourth Proportional to 12,577,979.84, 17,357,670.96 and 7,145,769.92

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Solution

The fourth proportional to 12,577,979.84, 17,357,670.96 and 7,145,769.92 is: 9,861,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577,979.84 : 17,357,670.96 = 7,145,769.92 : x
  2. Step 2: Convert to fraction form
    12,577,979.84/17,357,670.96 = 7,145,769.92/x
  3. Step 3: Cross multiply
    12,577,979.84x = 17,357,670.96 × 7,145,769.92
  4. Step 4: Simplify right side
    12,577,979.84x = 124,033,923,027,225.53
  5. Step 5: Solve for x
    x = 124,033,923,027,225.53/12,577,979.84
  6. Step 6: Final answer
    x = 9,861,195.88

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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.