Home / 398,659,628.40-597,989,442.60-291,164,204.40

Finding the Fourth Proportional to 398,659,628.40, 597,989,442.60 and 291,164,204.40

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Solution

The fourth proportional to 398,659,628.40, 597,989,442.60 and 291,164,204.40 is: 436,746,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,659,628.40 : 597,989,442.60 = 291,164,204.40 : x
  2. Step 2: Convert to fraction form
    398,659,628.40/597,989,442.60 = 291,164,204.40/x
  3. Step 3: Cross multiply
    398,659,628.40x = 597,989,442.60 × 291,164,204.40
  4. Step 4: Simplify right side
    398,659,628.40x = 174,113,120,294,228,448
  5. Step 5: Solve for x
    x = 174,113,120,294,228,448/398,659,628.40
  6. Step 6: Final answer
    x = 436,746,306.60

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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.