Home / 256,130,534.28-353,460,062.43-138,655,777.35

Finding the Fourth Proportional to 256,130,534.28, 353,460,062.43 and 138,655,777.35

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Solution

The fourth proportional to 256,130,534.28, 353,460,062.43 and 138,655,777.35 is: 191,344,932.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,130,534.28 : 353,460,062.43 = 138,655,777.35 : x
  2. Step 2: Convert to fraction form
    256,130,534.28/353,460,062.43 = 138,655,777.35/x
  3. Step 3: Cross multiply
    256,130,534.28x = 353,460,062.43 × 138,655,777.35
  4. Step 4: Simplify right side
    256,130,534.28x = 49,009,279,718,411,176
  5. Step 5: Solve for x
    x = 49,009,279,718,411,176/256,130,534.28
  6. Step 6: Final answer
    x = 191,344,932.21

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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.