Home / 207,361,138.20-311,041,707.30-153,613,426.20

Finding the Fourth Proportional to 207,361,138.20, 311,041,707.30 and 153,613,426.20

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Solution

The fourth proportional to 207,361,138.20, 311,041,707.30 and 153,613,426.20 is: 230,420,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,361,138.20 : 311,041,707.30 = 153,613,426.20 : x
  2. Step 2: Convert to fraction form
    207,361,138.20/311,041,707.30 = 153,613,426.20/x
  3. Step 3: Cross multiply
    207,361,138.20x = 311,041,707.30 × 153,613,426.20
  4. Step 4: Simplify right side
    207,361,138.20x = 47,780,182,349,450,552
  5. Step 5: Solve for x
    x = 47,780,182,349,450,552/207,361,138.20
  6. Step 6: Final answer
    x = 230,420,139.30

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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.