Home / 256,398,427.17-353,829,962.61-138,923,850.15

Finding the Fourth Proportional to 256,398,427.17, 353,829,962.61 and 138,923,850.15

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Solution

The fourth proportional to 256,398,427.17, 353,829,962.61 and 138,923,850.15 is: 191,714,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,398,427.17 : 353,829,962.61 = 138,923,850.15 : x
  2. Step 2: Convert to fraction form
    256,398,427.17/353,829,962.61 = 138,923,850.15/x
  3. Step 3: Cross multiply
    256,398,427.17x = 353,829,962.61 × 138,923,850.15
  4. Step 4: Simplify right side
    256,398,427.17x = 49,155,420,704,211,744
  5. Step 5: Solve for x
    x = 49,155,420,704,211,744/256,398,427.17
  6. Step 6: Final answer
    x = 191,714,985.33

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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.