Home / 159,442,605.20-220,030,793.88-86,103,740.72

Finding the Fourth Proportional to 159,442,605.20, 220,030,793.88 and 86,103,740.72

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Solution

The fourth proportional to 159,442,605.20, 220,030,793.88 and 86,103,740.72 is: 118,823,161.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,442,605.20 : 220,030,793.88 = 86,103,740.72 : x
  2. Step 2: Convert to fraction form
    159,442,605.20/220,030,793.88 = 86,103,740.72/x
  3. Step 3: Cross multiply
    159,442,605.20x = 220,030,793.88 × 86,103,740.72
  4. Step 4: Simplify right side
    159,442,605.20x = 18,945,474,426,659,284
  5. Step 5: Solve for x
    x = 18,945,474,426,659,284/159,442,605.20
  6. Step 6: Final answer
    x = 118,823,161.49

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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.