Home / 256,099,278.24-353,417,886.72-138,624,576.48

Finding the Fourth Proportional to 256,099,278.24, 353,417,886.72 and 138,624,576.48

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Solution

The fourth proportional to 256,099,278.24, 353,417,886.72 and 138,624,576.48 is: 191,302,393.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,099,278.24 : 353,417,886.72 = 138,624,576.48 : x
  2. Step 2: Convert to fraction form
    256,099,278.24/353,417,886.72 = 138,624,576.48/x
  3. Step 3: Cross multiply
    256,099,278.24x = 353,417,886.72 × 138,624,576.48
  4. Step 4: Simplify right side
    256,099,278.24x = 48,992,404,867,016,616
  5. Step 5: Solve for x
    x = 48,992,404,867,016,616/256,099,278.24
  6. Step 6: Final answer
    x = 191,302,393.37

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1.5x scale

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.