Home / 315,048,917.20-472,573,375.80-85,017,632.80

Finding the Fourth Proportional to 315,048,917.20, 472,573,375.80 and 85,017,632.80

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Solution

The fourth proportional to 315,048,917.20, 472,573,375.80 and 85,017,632.80 is: 127,526,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,048,917.20 : 472,573,375.80 = 85,017,632.80 : x
  2. Step 2: Convert to fraction form
    315,048,917.20/472,573,375.80 = 85,017,632.80/x
  3. Step 3: Cross multiply
    315,048,917.20x = 472,573,375.80 × 85,017,632.80
  4. Step 4: Simplify right side
    315,048,917.20x = 40,177,069,734,820,808
  5. Step 5: Solve for x
    x = 40,177,069,734,820,808/315,048,917.20
  6. Step 6: Final answer
    x = 127,526,449.20

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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.