Home / 463,542,465.60-639,744,217.56-278,005,550.40

Finding the Fourth Proportional to 463,542,465.60, 639,744,217.56 and 278,005,550.40

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Solution

The fourth proportional to 463,542,465.60, 639,744,217.56 and 278,005,550.40 is: 383,681,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,542,465.60 : 639,744,217.56 = 278,005,550.40 : x
  2. Step 2: Convert to fraction form
    463,542,465.60/639,744,217.56 = 278,005,550.40/x
  3. Step 3: Cross multiply
    463,542,465.60x = 639,744,217.56 × 278,005,550.40
  4. Step 4: Simplify right side
    463,542,465.60x = 177,852,443,317,985,120
  5. Step 5: Solve for x
    x = 177,852,443,317,985,120/463,542,465.60
  6. Step 6: Final answer
    x = 383,681,014.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.