Home / 138,702,022.20-191,411,883.48-79,162,124.04

Finding the Fourth Proportional to 138,702,022.20, 191,411,883.48 and 79,162,124.04

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Solution

The fourth proportional to 138,702,022.20, 191,411,883.48 and 79,162,124.04 is: 109,245,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,702,022.20 : 191,411,883.48 = 79,162,124.04 : x
  2. Step 2: Convert to fraction form
    138,702,022.20/191,411,883.48 = 79,162,124.04/x
  3. Step 3: Cross multiply
    138,702,022.20x = 191,411,883.48 × 79,162,124.04
  4. Step 4: Simplify right side
    138,702,022.20x = 15,152,571,262,773,788
  5. Step 5: Solve for x
    x = 15,152,571,262,773,788/138,702,022.20
  6. Step 6: Final answer
    x = 109,245,496.37

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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.