Home / 159,488,367-220,094,035.02-86,149,509.72

Finding the Fourth Proportional to 159,488,367, 220,094,035.02 and 86,149,509.72

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Solution

The fourth proportional to 159,488,367, 220,094,035.02 and 86,149,509.72 is: 118,886,371.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,488,367 : 220,094,035.02 = 86,149,509.72 : x
  2. Step 2: Convert to fraction form
    159,488,367/220,094,035.02 = 86,149,509.72/x
  3. Step 3: Cross multiply
    159,488,367x = 220,094,035.02 × 86,149,509.72
  4. Step 4: Simplify right side
    159,488,367x = 18,960,993,209,269,512
  5. Step 5: Solve for x
    x = 18,960,993,209,269,512/159,488,367
  6. Step 6: Final answer
    x = 118,886,371.25

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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.