Home / 159,488,356.50-220,094,020.53-86,149,499.22

Finding the Fourth Proportional to 159,488,356.50, 220,094,020.53 and 86,149,499.22

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Solution

The fourth proportional to 159,488,356.50, 220,094,020.53 and 86,149,499.22 is: 118,886,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,488,356.50 : 220,094,020.53 = 86,149,499.22 : x
  2. Step 2: Convert to fraction form
    159,488,356.50/220,094,020.53 = 86,149,499.22/x
  3. Step 3: Cross multiply
    159,488,356.50x = 220,094,020.53 × 86,149,499.22
  4. Step 4: Simplify right side
    159,488,356.50x = 18,960,989,649,975,900
  5. Step 5: Solve for x
    x = 18,960,989,649,975,900/159,488,356.50
  6. Step 6: Final answer
    x = 118,886,356.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.