Home / 211,236,949.14-316,793,954.43-81,815,693.46

Finding the Fourth Proportional to 211,236,949.14, 316,793,954.43 and 81,815,693.46

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Solution

The fourth proportional to 211,236,949.14, 316,793,954.43 and 81,815,693.46 is: 122,699,732.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,236,949.14 : 316,793,954.43 = 81,815,693.46 : x
  2. Step 2: Convert to fraction form
    211,236,949.14/316,793,954.43 = 81,815,693.46/x
  3. Step 3: Cross multiply
    211,236,949.14x = 316,793,954.43 × 81,815,693.46
  4. Step 4: Simplify right side
    211,236,949.14x = 25,918,717,065,626,088
  5. Step 5: Solve for x
    x = 25,918,717,065,626,088/211,236,949.14
  6. Step 6: Final answer
    x = 122,699,732.08

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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.