Home / 153,469,275.20-211,790,449.88-83,859,164.72

Finding the Fourth Proportional to 153,469,275.20, 211,790,449.88 and 83,859,164.72

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Solution

The fourth proportional to 153,469,275.20, 211,790,449.88 and 83,859,164.72 is: 115,727,204.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,469,275.20 : 211,790,449.88 = 83,859,164.72 : x
  2. Step 2: Convert to fraction form
    153,469,275.20/211,790,449.88 = 83,859,164.72/x
  3. Step 3: Cross multiply
    153,469,275.20x = 211,790,449.88 × 83,859,164.72
  4. Step 4: Simplify right side
    153,469,275.20x = 17,760,570,221,131,576
  5. Step 5: Solve for x
    x = 17,760,570,221,131,576/153,469,275.20
  6. Step 6: Final answer
    x = 115,727,204.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.