Home / 465,354,050.40-642,188,433.33-256,513,680.63

Finding the Fourth Proportional to 465,354,050.40, 642,188,433.33 and 256,513,680.63

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Solution

The fourth proportional to 465,354,050.40, 642,188,433.33 and 256,513,680.63 is: 353,988,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,354,050.40 : 642,188,433.33 = 256,513,680.63 : x
  2. Step 2: Convert to fraction form
    465,354,050.40/642,188,433.33 = 256,513,680.63/x
  3. Step 3: Cross multiply
    465,354,050.40x = 642,188,433.33 × 256,513,680.63
  4. Step 4: Simplify right side
    465,354,050.40x = 164,730,118,691,491,680
  5. Step 5: Solve for x
    x = 164,730,118,691,491,680/465,354,050.40
  6. Step 6: Final answer
    x = 353,988,793.16

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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.