Home / 256,344,543.30-384,527,312.55-74,591,721.30

Finding the Fourth Proportional to 256,344,543.30, 384,527,312.55 and 74,591,721.30

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Solution

The fourth proportional to 256,344,543.30, 384,527,312.55 and 74,591,721.30 is: 111,890,636.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,344,543.30 : 384,527,312.55 = 74,591,721.30 : x
  2. Step 2: Convert to fraction form
    256,344,543.30/384,527,312.55 = 74,591,721.30/x
  3. Step 3: Cross multiply
    256,344,543.30x = 384,527,312.55 × 74,591,721.30
  4. Step 4: Simplify right side
    256,344,543.30x = 28,682,554,129,967,592
  5. Step 5: Solve for x
    x = 28,682,554,129,967,592/256,344,543.30
  6. Step 6: Final answer
    x = 111,890,636.57

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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.