Home / 20,384,487.48-28,130,236.80-11,091,744.04

Finding the Fourth Proportional to 20,384,487.48, 28,130,236.80 and 11,091,744.04

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Solution

The fourth proportional to 20,384,487.48, 28,130,236.80 and 11,091,744.04 is: 15,306,413.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384,487.48 : 28,130,236.80 = 11,091,744.04 : x
  2. Step 2: Convert to fraction form
    20,384,487.48/28,130,236.80 = 11,091,744.04/x
  3. Step 3: Cross multiply
    20,384,487.48x = 28,130,236.80 × 11,091,744.04
  4. Step 4: Simplify right side
    20,384,487.48x = 312,013,386,370,188.62
  5. Step 5: Solve for x
    x = 312,013,386,370,188.62/20,384,487.48
  6. Step 6: Final answer
    x = 15,306,413.11

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1.5x scale

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.