Home / 506,440,506.44-698,872,883.78-280,389,561.40

Finding the Fourth Proportional to 506,440,506.44, 698,872,883.78 and 280,389,561.40

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Solution

The fourth proportional to 506,440,506.44, 698,872,883.78 and 280,389,561.40 is: 386,929,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,440,506.44 : 698,872,883.78 = 280,389,561.40 : x
  2. Step 2: Convert to fraction form
    506,440,506.44/698,872,883.78 = 280,389,561.40/x
  3. Step 3: Cross multiply
    506,440,506.44x = 698,872,883.78 × 280,389,561.40
  4. Step 4: Simplify right side
    506,440,506.44x = 195,956,661,357,427,360
  5. Step 5: Solve for x
    x = 195,956,661,357,427,360/506,440,506.44
  6. Step 6: Final answer
    x = 386,929,281.65

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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.