Home / 506,440,505.44-698,872,882.40-280,389,560.40

Finding the Fourth Proportional to 506,440,505.44, 698,872,882.40 and 280,389,560.40

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Solution

The fourth proportional to 506,440,505.44, 698,872,882.40 and 280,389,560.40 is: 386,929,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,440,505.44 : 698,872,882.40 = 280,389,560.40 : x
  2. Step 2: Convert to fraction form
    506,440,505.44/698,872,882.40 = 280,389,560.40/x
  3. Step 3: Cross multiply
    506,440,505.44x = 698,872,882.40 × 280,389,560.40
  4. Step 4: Simplify right side
    506,440,505.44x = 195,956,660,271,616,864
  5. Step 5: Solve for x
    x = 195,956,660,271,616,864/506,440,505.44
  6. Step 6: Final answer
    x = 386,929,280.27

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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.