Home / 98,685,319.80-148,113,010.31-68,414,440.44

Finding the Fourth Proportional to 98,685,319.80, 148,113,010.31 and 68,414,440.44

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Solution

The fourth proportional to 98,685,319.80, 148,113,010.31 and 68,414,440.44 is: 102,680,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,685,319.80 : 148,113,010.31 = 68,414,440.44 : x
  2. Step 2: Convert to fraction form
    98,685,319.80/148,113,010.31 = 68,414,440.44/x
  3. Step 3: Cross multiply
    98,685,319.80x = 148,113,010.31 × 68,414,440.44
  4. Step 4: Simplify right side
    98,685,319.80x = 10,133,068,721,900,528
  5. Step 5: Solve for x
    x = 10,133,068,721,900,528/98,685,319.80
  6. Step 6: Final answer
    x = 102,680,608.85

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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.