Home / 209,969,320.20-314,953,980.30-198,065,041.80

Finding the Fourth Proportional to 209,969,320.20, 314,953,980.30 and 198,065,041.80

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Solution

The fourth proportional to 209,969,320.20, 314,953,980.30 and 198,065,041.80 is: 297,097,562.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,969,320.20 : 314,953,980.30 = 198,065,041.80 : x
  2. Step 2: Convert to fraction form
    209,969,320.20/314,953,980.30 = 198,065,041.80/x
  3. Step 3: Cross multiply
    209,969,320.20x = 314,953,980.30 × 198,065,041.80
  4. Step 4: Simplify right side
    209,969,320.20x = 62,381,373,273,195,880
  5. Step 5: Solve for x
    x = 62,381,373,273,195,880/209,969,320.20
  6. Step 6: Final answer
    x = 297,097,562.70

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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.