Home / 20,188,101.15-30,282,151.73-7,406,945.10

Finding the Fourth Proportional to 20,188,101.15, 30,282,151.73 and 7,406,945.10

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Solution

The fourth proportional to 20,188,101.15, 30,282,151.73 and 7,406,945.10 is: 11,110,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,101.15 : 30,282,151.73 = 7,406,945.10 : x
  2. Step 2: Convert to fraction form
    20,188,101.15/30,282,151.73 = 7,406,945.10/x
  3. Step 3: Cross multiply
    20,188,101.15x = 30,282,151.73 × 7,406,945.10
  4. Step 4: Simplify right side
    20,188,101.15x = 224,298,235,336,945.31
  5. Step 5: Solve for x
    x = 224,298,235,336,945.31/20,188,101.15
  6. Step 6: Final answer
    x = 11,110,417.65

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Double scale
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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.