Home / 379,948,095.28-569,179,896.80-261,751,986.40

Finding the Fourth Proportional to 379,948,095.28, 569,179,896.80 and 261,751,986.40

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Solution

The fourth proportional to 379,948,095.28, 569,179,896.80 and 261,751,986.40 is: 392,116,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,948,095.28 : 569,179,896.80 = 261,751,986.40 : x
  2. Step 2: Convert to fraction form
    379,948,095.28/569,179,896.80 = 261,751,986.40/x
  3. Step 3: Cross multiply
    379,948,095.28x = 569,179,896.80 × 261,751,986.40
  4. Step 4: Simplify right side
    379,948,095.28x = 148,983,968,606,347,008
  5. Step 5: Solve for x
    x = 148,983,968,606,347,008/379,948,095.28
  6. Step 6: Final answer
    x = 392,116,635.03

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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.