Home / 398,574,613.60-597,861,920.40-140,081,711.20

Finding the Fourth Proportional to 398,574,613.60, 597,861,920.40 and 140,081,711.20

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Solution

The fourth proportional to 398,574,613.60, 597,861,920.40 and 140,081,711.20 is: 210,122,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,574,613.60 : 597,861,920.40 = 140,081,711.20 : x
  2. Step 2: Convert to fraction form
    398,574,613.60/597,861,920.40 = 140,081,711.20/x
  3. Step 3: Cross multiply
    398,574,613.60x = 597,861,920.40 × 140,081,711.20
  4. Step 4: Simplify right side
    398,574,613.60x = 83,749,520,870,950,176
  5. Step 5: Solve for x
    x = 83,749,520,870,950,176/398,574,613.60
  6. Step 6: Final answer
    x = 210,122,566.80

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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.