Home / 398,867,507.96-598,335,515.22-140,060,481.08

Finding the Fourth Proportional to 398,867,507.96, 598,335,515.22 and 140,060,481.08

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Solution

The fourth proportional to 398,867,507.96, 598,335,515.22 and 140,060,481.08 is: 210,102,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,867,507.96 : 598,335,515.22 = 140,060,481.08 : x
  2. Step 2: Convert to fraction form
    398,867,507.96/598,335,515.22 = 140,060,481.08/x
  3. Step 3: Cross multiply
    398,867,507.96x = 598,335,515.22 × 140,060,481.08
  4. Step 4: Simplify right side
    398,867,507.96x = 83,803,160,108,962,880
  5. Step 5: Solve for x
    x = 83,803,160,108,962,880/398,867,507.96
  6. Step 6: Final answer
    x = 210,102,749.50

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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.