Home / 18,687,769.40-28,036,902.90-9,103,460.60

Finding the Fourth Proportional to 18,687,769.40, 28,036,902.90 and 9,103,460.60

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Solution

The fourth proportional to 18,687,769.40, 28,036,902.90 and 9,103,460.60 is: 13,657,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,769.40 : 28,036,902.90 = 9,103,460.60 : x
  2. Step 2: Convert to fraction form
    18,687,769.40/28,036,902.90 = 9,103,460.60/x
  3. Step 3: Cross multiply
    18,687,769.40x = 28,036,902.90 × 9,103,460.60
  4. Step 4: Simplify right side
    18,687,769.40x = 255,232,840,896,175.72
  5. Step 5: Solve for x
    x = 255,232,840,896,175.72/18,687,769.40
  6. Step 6: Final answer
    x = 13,657,747.77

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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.