Home / 665,200,581.72-917,982,747.84-367,862,827.71

Finding the Fourth Proportional to 665,200,581.72, 917,982,747.84 and 367,862,827.71

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Solution

The fourth proportional to 665,200,581.72, 917,982,747.84 and 367,862,827.71 is: 507,653,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,200,581.72 : 917,982,747.84 = 367,862,827.71 : x
  2. Step 2: Convert to fraction form
    665,200,581.72/917,982,747.84 = 367,862,827.71/x
  3. Step 3: Cross multiply
    665,200,581.72x = 917,982,747.84 × 367,862,827.71
  4. Step 4: Simplify right side
    665,200,581.72x = 337,691,729,409,418,304
  5. Step 5: Solve for x
    x = 337,691,729,409,418,304/665,200,581.72
  6. Step 6: Final answer
    x = 507,653,989.92

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Double scale
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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.