Home / 154,974,872.56-213,865,304.94-85,360,253.45

Finding the Fourth Proportional to 154,974,872.56, 213,865,304.94 and 85,360,253.45

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Solution

The fourth proportional to 154,974,872.56, 213,865,304.94 and 85,360,253.45 is: 117,797,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,974,872.56 : 213,865,304.94 = 85,360,253.45 : x
  2. Step 2: Convert to fraction form
    154,974,872.56/213,865,304.94 = 85,360,253.45/x
  3. Step 3: Cross multiply
    154,974,872.56x = 213,865,304.94 × 85,360,253.45
  4. Step 4: Simplify right side
    154,974,872.56x = 18,255,596,633,839,936
  5. Step 5: Solve for x
    x = 18,255,596,633,839,936/154,974,872.56
  6. Step 6: Final answer
    x = 117,797,139.19

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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.