Home / 146,711,609.10-220,067,413.65-78,687,161.10

Finding the Fourth Proportional to 146,711,609.10, 220,067,413.65 and 78,687,161.10

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Solution

The fourth proportional to 146,711,609.10, 220,067,413.65 and 78,687,161.10 is: 118,030,741.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,711,609.10 : 220,067,413.65 = 78,687,161.10 : x
  2. Step 2: Convert to fraction form
    146,711,609.10/220,067,413.65 = 78,687,161.10/x
  3. Step 3: Cross multiply
    146,711,609.10x = 220,067,413.65 × 78,687,161.10
  4. Step 4: Simplify right side
    146,711,609.10x = 17,316,480,030,737,888
  5. Step 5: Solve for x
    x = 17,316,480,030,737,888/146,711,609.10
  6. Step 6: Final answer
    x = 118,030,741.65

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Similar ratio
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1.5x scale

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.