Home / 649,542,420.40-974,313,630.60-305,168,652.40

Finding the Fourth Proportional to 649,542,420.40, 974,313,630.60 and 305,168,652.40

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Solution

The fourth proportional to 649,542,420.40, 974,313,630.60 and 305,168,652.40 is: 457,752,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,542,420.40 : 974,313,630.60 = 305,168,652.40 : x
  2. Step 2: Convert to fraction form
    649,542,420.40/974,313,630.60 = 305,168,652.40/x
  3. Step 3: Cross multiply
    649,542,420.40x = 974,313,630.60 × 305,168,652.40
  4. Step 4: Simplify right side
    649,542,420.40x = 297,329,977,665,153,408
  5. Step 5: Solve for x
    x = 297,329,977,665,153,408/649,542,420.40
  6. Step 6: Final answer
    x = 457,752,978.60

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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.