Home / 20,199,798.45-30,299,697.68-10,098,774.45

Finding the Fourth Proportional to 20,199,798.45, 30,299,697.68 and 10,098,774.45

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Solution

The fourth proportional to 20,199,798.45, 30,299,697.68 and 10,098,774.45 is: 15,148,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,798.45 : 30,299,697.68 = 10,098,774.45 : x
  2. Step 2: Convert to fraction form
    20,199,798.45/30,299,697.68 = 10,098,774.45/x
  3. Step 3: Cross multiply
    20,199,798.45x = 30,299,697.68 × 10,098,774.45
  4. Step 4: Simplify right side
    20,199,798.45x = 305,989,812,773,508.25
  5. Step 5: Solve for x
    x = 305,989,812,773,508.25/20,199,798.45
  6. Step 6: Final answer
    x = 15,148,161.68

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Similar ratio
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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.