Home / 209,984,913.80-314,977,370.70-137,425,502.60

Finding the Fourth Proportional to 209,984,913.80, 314,977,370.70 and 137,425,502.60

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Solution

The fourth proportional to 209,984,913.80, 314,977,370.70 and 137,425,502.60 is: 206,138,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,984,913.80 : 314,977,370.70 = 137,425,502.60 : x
  2. Step 2: Convert to fraction form
    209,984,913.80/314,977,370.70 = 137,425,502.60/x
  3. Step 3: Cross multiply
    209,984,913.80x = 314,977,370.70 × 137,425,502.60
  4. Step 4: Simplify right side
    209,984,913.80x = 43,285,923,476,074,008
  5. Step 5: Solve for x
    x = 43,285,923,476,074,008/209,984,913.80
  6. Step 6: Final answer
    x = 206,138,253.90

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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.