Home / 398,574,612.60-597,861,918.90-140,081,710.20

Finding the Fourth Proportional to 398,574,612.60, 597,861,918.90 and 140,081,710.20

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Solution

The fourth proportional to 398,574,612.60, 597,861,918.90 and 140,081,710.20 is: 210,122,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,574,612.60 : 597,861,918.90 = 140,081,710.20 : x
  2. Step 2: Convert to fraction form
    398,574,612.60/597,861,918.90 = 140,081,710.20/x
  3. Step 3: Cross multiply
    398,574,612.60x = 597,861,918.90 × 140,081,710.20
  4. Step 4: Simplify right side
    398,574,612.60x = 83,749,520,062,965,696
  5. Step 5: Solve for x
    x = 83,749,520,062,965,696/398,574,612.60
  6. Step 6: Final answer
    x = 210,122,565.30

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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.