Home / 8,490,867.68-12,716,898.76-6,665,076.72

Finding the Fourth Proportional to 8,490,867.68, 12,716,898.76 and 6,665,076.72

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Solution

The fourth proportional to 8,490,867.68, 12,716,898.76 and 6,665,076.72 is: 9,982,384.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490,867.68 : 12,716,898.76 = 6,665,076.72 : x
  2. Step 2: Convert to fraction form
    8,490,867.68/12,716,898.76 = 6,665,076.72/x
  3. Step 3: Cross multiply
    8,490,867.68x = 12,716,898.76 × 6,665,076.72
  4. Step 4: Simplify right side
    8,490,867.68x = 84,759,105,875,872.86
  5. Step 5: Solve for x
    x = 84,759,105,875,872.86/8,490,867.68
  6. Step 6: Final answer
    x = 9,982,384.49

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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.