Home / 208,543,743.30-312,815,614.95-160,265,280.90

Finding the Fourth Proportional to 208,543,743.30, 312,815,614.95 and 160,265,280.90

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Solution

The fourth proportional to 208,543,743.30, 312,815,614.95 and 160,265,280.90 is: 240,397,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,543,743.30 : 312,815,614.95 = 160,265,280.90 : x
  2. Step 2: Convert to fraction form
    208,543,743.30/312,815,614.95 = 160,265,280.90/x
  3. Step 3: Cross multiply
    208,543,743.30x = 312,815,614.95 × 160,265,280.90
  4. Step 4: Simplify right side
    208,543,743.30x = 50,133,482,399,867,992
  5. Step 5: Solve for x
    x = 50,133,482,399,867,992/208,543,743.30
  6. Step 6: Final answer
    x = 240,397,921.35

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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.