Home / 209,952,459.80-314,928,689.70-197,187,378.20

Finding the Fourth Proportional to 209,952,459.80, 314,928,689.70 and 197,187,378.20

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Solution

The fourth proportional to 209,952,459.80, 314,928,689.70 and 197,187,378.20 is: 295,781,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,459.80 : 314,928,689.70 = 197,187,378.20 : x
  2. Step 2: Convert to fraction form
    209,952,459.80/314,928,689.70 = 197,187,378.20/x
  3. Step 3: Cross multiply
    209,952,459.80x = 314,928,689.70 × 197,187,378.20
  4. Step 4: Simplify right side
    209,952,459.80x = 62,099,962,641,904,336
  5. Step 5: Solve for x
    x = 62,099,962,641,904,336/209,952,459.80
  6. Step 6: Final answer
    x = 295,781,067.30

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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.