Home / 256,127,374.12-353,455,367.54-138,652,673.22

Finding the Fourth Proportional to 256,127,374.12, 353,455,367.54 and 138,652,673.22

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Solution

The fourth proportional to 256,127,374.12, 353,455,367.54 and 138,652,673.22 is: 191,340,467.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,127,374.12 : 353,455,367.54 = 138,652,673.22 : x
  2. Step 2: Convert to fraction form
    256,127,374.12/353,455,367.54 = 138,652,673.22/x
  3. Step 3: Cross multiply
    256,127,374.12x = 353,455,367.54 × 138,652,673.22
  4. Step 4: Simplify right side
    256,127,374.12x = 49,007,531,573,378,616
  5. Step 5: Solve for x
    x = 49,007,531,573,378,616/256,127,374.12
  6. Step 6: Final answer
    x = 191,340,467.77

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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.