Home / 248,178,042.12-372,437,098.38-86,619,978.12

Finding the Fourth Proportional to 248,178,042.12, 372,437,098.38 and 86,619,978.12

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Solution

The fourth proportional to 248,178,042.12, 372,437,098.38 and 86,619,978.12 is: 129,989,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,178,042.12 : 372,437,098.38 = 86,619,978.12 : x
  2. Step 2: Convert to fraction form
    248,178,042.12/372,437,098.38 = 86,619,978.12/x
  3. Step 3: Cross multiply
    248,178,042.12x = 372,437,098.38 × 86,619,978.12
  4. Step 4: Simplify right side
    248,178,042.12x = 32,260,493,312,751,888
  5. Step 5: Solve for x
    x = 32,260,493,312,751,888/248,178,042.12
  6. Step 6: Final answer
    x = 129,989,313.47

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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.