Home / 20,146,843.76-30,223,240-7,191,988.88

Finding the Fourth Proportional to 20,146,843.76, 30,223,240 and 7,191,988.88

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Solution

The fourth proportional to 20,146,843.76, 30,223,240 and 7,191,988.88 is: 10,789,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,843.76 : 30,223,240 = 7,191,988.88 : x
  2. Step 2: Convert to fraction form
    20,146,843.76/30,223,240 = 7,191,988.88/x
  3. Step 3: Cross multiply
    20,146,843.76x = 30,223,240 × 7,191,988.88
  4. Step 4: Simplify right side
    20,146,843.76x = 217,365,205,997,571.19
  5. Step 5: Solve for x
    x = 217,365,205,997,571.19/20,146,843.76
  6. Step 6: Final answer
    x = 10,789,045.10

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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.