Home / 9,358,384.64-12,914,332.88-5,228,446.78

Finding the Fourth Proportional to 9,358,384.64, 12,914,332.88 and 5,228,446.78

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Solution

The fourth proportional to 9,358,384.64, 12,914,332.88 and 5,228,446.78 is: 7,215,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358,384.64 : 12,914,332.88 = 5,228,446.78 : x
  2. Step 2: Convert to fraction form
    9,358,384.64/12,914,332.88 = 5,228,446.78/x
  3. Step 3: Cross multiply
    9,358,384.64x = 12,914,332.88 × 5,228,446.78
  4. Step 4: Simplify right side
    9,358,384.64x = 67,521,902,152,284.81
  5. Step 5: Solve for x
    x = 67,521,902,152,284.81/9,358,384.64
  6. Step 6: Final answer
    x = 7,215,123.63

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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.