Home / 207,643,913.20-311,465,869.80-173,883,631.60

Finding the Fourth Proportional to 207,643,913.20, 311,465,869.80 and 173,883,631.60

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Solution

The fourth proportional to 207,643,913.20, 311,465,869.80 and 173,883,631.60 is: 260,825,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,643,913.20 : 311,465,869.80 = 173,883,631.60 : x
  2. Step 2: Convert to fraction form
    207,643,913.20/311,465,869.80 = 173,883,631.60/x
  3. Step 3: Cross multiply
    207,643,913.20x = 311,465,869.80 × 173,883,631.60
  4. Step 4: Simplify right side
    207,643,913.20x = 54,158,816,560,276,768
  5. Step 5: Solve for x
    x = 54,158,816,560,276,768/207,643,913.20
  6. Step 6: Final answer
    x = 260,825,447.40

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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.