Home / 315,597,752.20-473,060,705.10-121,434,142.60

Finding the Fourth Proportional to 315,597,752.20, 473,060,705.10 and 121,434,142.60

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Solution

The fourth proportional to 315,597,752.20, 473,060,705.10 and 121,434,142.60 is: 182,021,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,597,752.20 : 473,060,705.10 = 121,434,142.60 : x
  2. Step 2: Convert to fraction form
    315,597,752.20/473,060,705.10 = 121,434,142.60/x
  3. Step 3: Cross multiply
    315,597,752.20x = 473,060,705.10 × 121,434,142.60
  4. Step 4: Simplify right side
    315,597,752.20x = 57,445,721,121,569,944
  5. Step 5: Solve for x
    x = 57,445,721,121,569,944/315,597,752.20
  6. Step 6: Final answer
    x = 182,021,959.03

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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.