Home / 207,991,723.20-311,987,584.80-147,525,547.20

Finding the Fourth Proportional to 207,991,723.20, 311,987,584.80 and 147,525,547.20

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Solution

The fourth proportional to 207,991,723.20, 311,987,584.80 and 147,525,547.20 is: 221,288,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,991,723.20 : 311,987,584.80 = 147,525,547.20 : x
  2. Step 2: Convert to fraction form
    207,991,723.20/311,987,584.80 = 147,525,547.20/x
  3. Step 3: Cross multiply
    207,991,723.20x = 311,987,584.80 × 147,525,547.20
  4. Step 4: Simplify right side
    207,991,723.20x = 46,026,139,167,226,400
  5. Step 5: Solve for x
    x = 46,026,139,167,226,400/207,991,723.20
  6. Step 6: Final answer
    x = 221,288,320.80

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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.