Home / 398,909,508.96-598,597,432.88-288,135,946.92

Finding the Fourth Proportional to 398,909,508.96, 598,597,432.88 and 288,135,946.92

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Solution

The fourth proportional to 398,909,508.96, 598,597,432.88 and 288,135,946.92 is: 432,372,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,909,508.96 : 598,597,432.88 = 288,135,946.92 : x
  2. Step 2: Convert to fraction form
    398,909,508.96/598,597,432.88 = 288,135,946.92/x
  3. Step 3: Cross multiply
    398,909,508.96x = 598,597,432.88 × 288,135,946.92
  4. Step 4: Simplify right side
    398,909,508.96x = 172,477,438,146,759,936
  5. Step 5: Solve for x
    x = 172,477,438,146,759,936/398,909,508.96
  6. Step 6: Final answer
    x = 432,372,340.78

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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.