Home / 426,154,439.60-639,231,659.40-288,404,932.40

Finding the Fourth Proportional to 426,154,439.60, 639,231,659.40 and 288,404,932.40

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Solution

The fourth proportional to 426,154,439.60, 639,231,659.40 and 288,404,932.40 is: 432,607,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,154,439.60 : 639,231,659.40 = 288,404,932.40 : x
  2. Step 2: Convert to fraction form
    426,154,439.60/639,231,659.40 = 288,404,932.40/x
  3. Step 3: Cross multiply
    426,154,439.60x = 639,231,659.40 × 288,404,932.40
  4. Step 4: Simplify right side
    426,154,439.60x = 184,357,563,517,196,800
  5. Step 5: Solve for x
    x = 184,357,563,517,196,800/426,154,439.60
  6. Step 6: Final answer
    x = 432,607,398.60

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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.