Home / 154,369,028.07-231,335,848.13-85,312,928.43

Finding the Fourth Proportional to 154,369,028.07, 231,335,848.13 and 85,312,928.43

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Solution

The fourth proportional to 154,369,028.07, 231,335,848.13 and 85,312,928.43 is: 127,849,082.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,369,028.07 : 231,335,848.13 = 85,312,928.43 : x
  2. Step 2: Convert to fraction form
    154,369,028.07/231,335,848.13 = 85,312,928.43/x
  3. Step 3: Cross multiply
    154,369,028.07x = 231,335,848.13 × 85,312,928.43
  4. Step 4: Simplify right side
    154,369,028.07x = 19,735,938,654,381,476
  5. Step 5: Solve for x
    x = 19,735,938,654,381,476/154,369,028.07
  6. Step 6: Final answer
    x = 127,849,082.82

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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.