Home / 256,025,900.68-353,316,622.26-138,551,199.64

Finding the Fourth Proportional to 256,025,900.68, 353,316,622.26 and 138,551,199.64

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Solution

The fourth proportional to 256,025,900.68, 353,316,622.26 and 138,551,199.64 is: 191,201,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,025,900.68 : 353,316,622.26 = 138,551,199.64 : x
  2. Step 2: Convert to fraction form
    256,025,900.68/353,316,622.26 = 138,551,199.64/x
  3. Step 3: Cross multiply
    256,025,900.68x = 353,316,622.26 × 138,551,199.64
  4. Step 4: Simplify right side
    256,025,900.68x = 48,952,441,866,875,720
  5. Step 5: Solve for x
    x = 48,952,441,866,875,720/256,025,900.68
  6. Step 6: Final answer
    x = 191,201,131.36

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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.