Home / 18,997,601.80-28,496,402.70-7,632,200.20

Finding the Fourth Proportional to 18,997,601.80, 28,496,402.70 and 7,632,200.20

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Solution

The fourth proportional to 18,997,601.80, 28,496,402.70 and 7,632,200.20 is: 11,448,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997,601.80 : 28,496,402.70 = 7,632,200.20 : x
  2. Step 2: Convert to fraction form
    18,997,601.80/28,496,402.70 = 7,632,200.20/x
  3. Step 3: Cross multiply
    18,997,601.80x = 28,496,402.70 × 7,632,200.20
  4. Step 4: Simplify right side
    18,997,601.80x = 217,490,250,386,220.53
  5. Step 5: Solve for x
    x = 217,490,250,386,220.53/18,997,601.80
  6. Step 6: Final answer
    x = 11,448,300.30

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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.