Home / 256,127,372.12-353,455,364.78-138,652,671.22

Finding the Fourth Proportional to 256,127,372.12, 353,455,364.78 and 138,652,671.22

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Solution

The fourth proportional to 256,127,372.12, 353,455,364.78 and 138,652,671.22 is: 191,340,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,127,372.12 : 353,455,364.78 = 138,652,671.22 : x
  2. Step 2: Convert to fraction form
    256,127,372.12/353,455,364.78 = 138,652,671.22/x
  3. Step 3: Cross multiply
    256,127,372.12x = 353,455,364.78 × 138,652,671.22
  4. Step 4: Simplify right side
    256,127,372.12x = 49,007,530,484,717,360
  5. Step 5: Solve for x
    x = 49,007,530,484,717,360/256,127,372.12
  6. Step 6: Final answer
    x = 191,340,465.01

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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.