Home / 315,597,761.20-473,060,718.60-121,434,151.60

Finding the Fourth Proportional to 315,597,761.20, 473,060,718.60 and 121,434,151.60

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Solution

The fourth proportional to 315,597,761.20, 473,060,718.60 and 121,434,151.60 is: 182,021,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,597,761.20 : 473,060,718.60 = 121,434,151.60 : x
  2. Step 2: Convert to fraction form
    315,597,761.20/473,060,718.60 = 121,434,151.60/x
  3. Step 3: Cross multiply
    315,597,761.20x = 473,060,718.60 × 121,434,151.60
  4. Step 4: Simplify right side
    315,597,761.20x = 57,445,727,018,477,336
  5. Step 5: Solve for x
    x = 57,445,727,018,477,336/315,597,761.20
  6. Step 6: Final answer
    x = 182,021,972.53

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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.