Home / 12,578,216.76-17,360,981.10-11,727,211.32

Finding the Fourth Proportional to 12,578,216.76, 17,360,981.10 and 11,727,211.32

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Solution

The fourth proportional to 12,578,216.76, 17,360,981.10 and 11,727,211.32 is: 16,186,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578,216.76 : 17,360,981.10 = 11,727,211.32 : x
  2. Step 2: Convert to fraction form
    12,578,216.76/17,360,981.10 = 11,727,211.32/x
  3. Step 3: Cross multiply
    12,578,216.76x = 17,360,981.10 × 11,727,211.32
  4. Step 4: Simplify right side
    12,578,216.76x = 203,595,894,082,226.06
  5. Step 5: Solve for x
    x = 203,595,894,082,226.06/12,578,216.76
  6. Step 6: Final answer
    x = 16,186,387.78

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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.