Home / 649,542,432.90-974,313,649.35-305,168,664.90

Finding the Fourth Proportional to 649,542,432.90, 974,313,649.35 and 305,168,664.90

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Solution

The fourth proportional to 649,542,432.90, 974,313,649.35 and 305,168,664.90 is: 457,752,997.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,542,432.90 : 974,313,649.35 = 305,168,664.90 : x
  2. Step 2: Convert to fraction form
    649,542,432.90/974,313,649.35 = 305,168,664.90/x
  3. Step 3: Cross multiply
    649,542,432.90x = 974,313,649.35 × 305,168,664.90
  4. Step 4: Simplify right side
    649,542,432.90x = 297,329,995,565,986,240
  5. Step 5: Solve for x
    x = 297,329,995,565,986,240/649,542,432.90
  6. Step 6: Final answer
    x = 457,752,997.35

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Double scale
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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.