Home / 85,152,207.90-127,728,311.85-49,320,399.90

Finding the Fourth Proportional to 85,152,207.90, 127,728,311.85 and 49,320,399.90

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Solution

The fourth proportional to 85,152,207.90, 127,728,311.85 and 49,320,399.90 is: 73,980,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,152,207.90 : 127,728,311.85 = 49,320,399.90 : x
  2. Step 2: Convert to fraction form
    85,152,207.90/127,728,311.85 = 49,320,399.90/x
  3. Step 3: Cross multiply
    85,152,207.90x = 127,728,311.85 × 49,320,399.90
  4. Step 4: Simplify right side
    85,152,207.90x = 6,299,611,418,993,908
  5. Step 5: Solve for x
    x = 6,299,611,418,993,908/85,152,207.90
  6. Step 6: Final answer
    x = 73,980,599.85

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1.5x scale

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.