Home / 618,768,769.68-928,153,401.84-152,439,264.72

Finding the Fourth Proportional to 618,768,769.68, 928,153,401.84 and 152,439,264.72

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Solution

The fourth proportional to 618,768,769.68, 928,153,401.84 and 152,439,264.72 is: 228,658,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,768,769.68 : 928,153,401.84 = 152,439,264.72 : x
  2. Step 2: Convert to fraction form
    618,768,769.68/928,153,401.84 = 152,439,264.72/x
  3. Step 3: Cross multiply
    618,768,769.68x = 928,153,401.84 × 152,439,264.72
  4. Step 4: Simplify right side
    618,768,769.68x = 141,487,022,123,856,304
  5. Step 5: Solve for x
    x = 141,487,022,123,856,304/618,768,769.68
  6. Step 6: Final answer
    x = 228,658,958.01

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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.