Home / 298,927,471.68-412,548,305.76-187,435,961.28

Finding the Fourth Proportional to 298,927,471.68, 412,548,305.76 and 187,435,961.28

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Solution

The fourth proportional to 298,927,471.68, 412,548,305.76 and 187,435,961.28 is: 258,679,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,927,471.68 : 412,548,305.76 = 187,435,961.28 : x
  2. Step 2: Convert to fraction form
    298,927,471.68/412,548,305.76 = 187,435,961.28/x
  3. Step 3: Cross multiply
    298,927,471.68x = 412,548,305.76 × 187,435,961.28
  4. Step 4: Simplify right side
    298,927,471.68x = 77,326,388,264,560,960
  5. Step 5: Solve for x
    x = 77,326,388,264,560,960/298,927,471.68
  6. Step 6: Final answer
    x = 258,679,430.93

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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.