Home / 154,290,382.34-231,458,159.75-72,417,576.96

Finding the Fourth Proportional to 154,290,382.34, 231,458,159.75 and 72,417,576.96

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Solution

The fourth proportional to 154,290,382.34, 231,458,159.75 and 72,417,576.96 is: 108,636,966.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,290,382.34 : 231,458,159.75 = 72,417,576.96 : x
  2. Step 2: Convert to fraction form
    154,290,382.34/231,458,159.75 = 72,417,576.96/x
  3. Step 3: Cross multiply
    154,290,382.34x = 231,458,159.75 × 72,417,576.96
  4. Step 4: Simplify right side
    154,290,382.34x = 16,761,639,096,353,510
  5. Step 5: Solve for x
    x = 16,761,639,096,353,510/154,290,382.34
  6. Step 6: Final answer
    x = 108,636,966.50

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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.