Home / 256,018,891.02-353,306,070.06-138,544,221.20

Finding the Fourth Proportional to 256,018,891.02, 353,306,070.06 and 138,544,221.20

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Solution

The fourth proportional to 256,018,891.02, 353,306,070.06 and 138,544,221.20 is: 191,191,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,018,891.02 : 353,306,070.06 = 138,544,221.20 : x
  2. Step 2: Convert to fraction form
    256,018,891.02/353,306,070.06 = 138,544,221.20/x
  3. Step 3: Cross multiply
    256,018,891.02x = 353,306,070.06 × 138,544,221.20
  4. Step 4: Simplify right side
    256,018,891.02x = 48,948,514,321,695,336
  5. Step 5: Solve for x
    x = 48,948,514,321,695,336/256,018,891.02
  6. Step 6: Final answer
    x = 191,191,025.50

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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.