Home / 154,971,949.06-213,861,282.12-85,357,333.36

Finding the Fourth Proportional to 154,971,949.06, 213,861,282.12 and 85,357,333.36

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Solution

The fourth proportional to 154,971,949.06, 213,861,282.12 and 85,357,333.36 is: 117,793,115.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,971,949.06 : 213,861,282.12 = 85,357,333.36 : x
  2. Step 2: Convert to fraction form
    154,971,949.06/213,861,282.12 = 85,357,333.36/x
  3. Step 3: Cross multiply
    154,971,949.06x = 213,861,282.12 × 85,357,333.36
  4. Step 4: Simplify right side
    154,971,949.06x = 18,254,628,750,713,848
  5. Step 5: Solve for x
    x = 18,254,628,750,713,848/154,971,949.06
  6. Step 6: Final answer
    x = 117,793,115.86

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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.