Home / 256,820,359.31-385,226,030.40-177,964,147.43

Finding the Fourth Proportional to 256,820,359.31, 385,226,030.40 and 177,964,147.43

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Solution

The fourth proportional to 256,820,359.31, 385,226,030.40 and 177,964,147.43 is: 266,943,096.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,820,359.31 : 385,226,030.40 = 177,964,147.43 : x
  2. Step 2: Convert to fraction form
    256,820,359.31/385,226,030.40 = 177,964,147.43/x
  3. Step 3: Cross multiply
    256,820,359.31x = 385,226,030.40 × 177,964,147.43
  4. Step 4: Simplify right side
    256,820,359.31x = 68,556,422,067,979,264
  5. Step 5: Solve for x
    x = 68,556,422,067,979,264/256,820,359.31
  6. Step 6: Final answer
    x = 266,943,096.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.