Home / 208,656,412.70-312,984,619.05-132,065,923.10

Finding the Fourth Proportional to 208,656,412.70, 312,984,619.05 and 132,065,923.10

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Solution

The fourth proportional to 208,656,412.70, 312,984,619.05 and 132,065,923.10 is: 198,098,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,656,412.70 : 312,984,619.05 = 132,065,923.10 : x
  2. Step 2: Convert to fraction form
    208,656,412.70/312,984,619.05 = 132,065,923.10/x
  3. Step 3: Cross multiply
    208,656,412.70x = 312,984,619.05 × 132,065,923.10
  4. Step 4: Simplify right side
    208,656,412.70x = 41,334,602,630,940,096
  5. Step 5: Solve for x
    x = 41,334,602,630,940,096/208,656,412.70
  6. Step 6: Final answer
    x = 198,098,884.65

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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.