Home / 256,025,901.68-353,316,623.64-138,551,200.64

Finding the Fourth Proportional to 256,025,901.68, 353,316,623.64 and 138,551,200.64

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Solution

The fourth proportional to 256,025,901.68, 353,316,623.64 and 138,551,200.64 is: 191,201,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,025,901.68 : 353,316,623.64 = 138,551,200.64 : x
  2. Step 2: Convert to fraction form
    256,025,901.68/353,316,623.64 = 138,551,200.64/x
  3. Step 3: Cross multiply
    256,025,901.68x = 353,316,623.64 × 138,551,200.64
  4. Step 4: Simplify right side
    256,025,901.68x = 48,952,442,411,393,000
  5. Step 5: Solve for x
    x = 48,952,442,411,393,000/256,025,901.68
  6. Step 6: Final answer
    x = 191,201,132.74

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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.