Home / 927,276,469.60-1,390,914,704.40-280,960,232.80

Finding the Fourth Proportional to 927,276,469.60, 1,390,914,704.40 and 280,960,232.80

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Solution

The fourth proportional to 927,276,469.60, 1,390,914,704.40 and 280,960,232.80 is: 421,440,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,276,469.60 : 1,390,914,704.40 = 280,960,232.80 : x
  2. Step 2: Convert to fraction form
    927,276,469.60/1,390,914,704.40 = 280,960,232.80/x
  3. Step 3: Cross multiply
    927,276,469.60x = 1,390,914,704.40 × 280,960,232.80
  4. Step 4: Simplify right side
    927,276,469.60x = 390,791,719,153,167,232
  5. Step 5: Solve for x
    x = 390,791,719,153,167,232/927,276,469.60
  6. Step 6: Final answer
    x = 421,440,349.20

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1.5x scale

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.