Home / 615,881,862.72-923,823,982.80-149,541,320.16

Finding the Fourth Proportional to 615,881,862.72, 923,823,982.80 and 149,541,320.16

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Solution

The fourth proportional to 615,881,862.72, 923,823,982.80 and 149,541,320.16 is: 224,312,268.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,881,862.72 : 923,823,982.80 = 149,541,320.16 : x
  2. Step 2: Convert to fraction form
    615,881,862.72/923,823,982.80 = 149,541,320.16/x
  3. Step 3: Cross multiply
    615,881,862.72x = 923,823,982.80 × 149,541,320.16
  4. Step 4: Simplify right side
    615,881,862.72x = 138,149,857,983,381,120
  5. Step 5: Solve for x
    x = 138,149,857,983,381,120/615,881,862.72
  6. Step 6: Final answer
    x = 224,312,268.87

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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.