Home / 10,120,999.70-15,181,499.55-9,144,722.90

Finding the Fourth Proportional to 10,120,999.70, 15,181,499.55 and 9,144,722.90

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Solution

The fourth proportional to 10,120,999.70, 15,181,499.55 and 9,144,722.90 is: 13,717,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120,999.70 : 15,181,499.55 = 9,144,722.90 : x
  2. Step 2: Convert to fraction form
    10,120,999.70/15,181,499.55 = 9,144,722.90/x
  3. Step 3: Cross multiply
    10,120,999.70x = 15,181,499.55 × 9,144,722.90
  4. Step 4: Simplify right side
    10,120,999.70x = 138,830,606,591,224.70
  5. Step 5: Solve for x
    x = 138,830,606,591,224.70/10,120,999.70
  6. Step 6: Final answer
    x = 13,717,084.35

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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.