Home / 649,542,579.40-974,313,869.10-305,168,811.40

Finding the Fourth Proportional to 649,542,579.40, 974,313,869.10 and 305,168,811.40

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Solution

The fourth proportional to 649,542,579.40, 974,313,869.10 and 305,168,811.40 is: 457,753,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,542,579.40 : 974,313,869.10 = 305,168,811.40 : x
  2. Step 2: Convert to fraction form
    649,542,579.40/974,313,869.10 = 305,168,811.40/x
  3. Step 3: Cross multiply
    649,542,579.40x = 974,313,869.10 × 305,168,811.40
  4. Step 4: Simplify right side
    649,542,579.40x = 297,330,205,363,782,144
  5. Step 5: Solve for x
    x = 297,330,205,363,782,144/649,542,579.40
  6. Step 6: Final answer
    x = 457,753,217.10

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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.