Home / 138,819,320.20-208,228,980.30-70,794,872.20

Finding the Fourth Proportional to 138,819,320.20, 208,228,980.30 and 70,794,872.20

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Solution

The fourth proportional to 138,819,320.20, 208,228,980.30 and 70,794,872.20 is: 106,192,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,819,320.20 : 208,228,980.30 = 70,794,872.20 : x
  2. Step 2: Convert to fraction form
    138,819,320.20/208,228,980.30 = 70,794,872.20/x
  3. Step 3: Cross multiply
    138,819,320.20x = 208,228,980.30 × 70,794,872.20
  4. Step 4: Simplify right side
    138,819,320.20x = 14,741,544,048,674,820
  5. Step 5: Solve for x
    x = 14,741,544,048,674,820/138,819,320.20
  6. Step 6: Final answer
    x = 106,192,308.30

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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.