Home / 400,156,985.40-600,086,178.90-157,769,734.20

Finding the Fourth Proportional to 400,156,985.40, 600,086,178.90 and 157,769,734.20

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Solution

The fourth proportional to 400,156,985.40, 600,086,178.90 and 157,769,734.20 is: 236,595,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156,985.40 : 600,086,178.90 = 157,769,734.20 : x
  2. Step 2: Convert to fraction form
    400,156,985.40/600,086,178.90 = 157,769,734.20/x
  3. Step 3: Cross multiply
    400,156,985.40x = 600,086,178.90 × 157,769,734.20
  4. Step 4: Simplify right side
    400,156,985.40x = 94,675,436,942,146,640
  5. Step 5: Solve for x
    x = 94,675,436,942,146,640/400,156,985.40
  6. Step 6: Final answer
    x = 236,595,737.16

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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.