Home / 154,004,721.12-212,526,454.32-85,327,089.12

Finding the Fourth Proportional to 154,004,721.12, 212,526,454.32 and 85,327,089.12

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Solution

The fourth proportional to 154,004,721.12, 212,526,454.32 and 85,327,089.12 is: 117,751,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,004,721.12 : 212,526,454.32 = 85,327,089.12 : x
  2. Step 2: Convert to fraction form
    154,004,721.12/212,526,454.32 = 85,327,089.12/x
  3. Step 3: Cross multiply
    154,004,721.12x = 212,526,454.32 × 85,327,089.12
  4. Step 4: Simplify right side
    154,004,721.12x = 18,134,263,708,120,248
  5. Step 5: Solve for x
    x = 18,134,263,708,120,248/154,004,721.12
  6. Step 6: Final answer
    x = 117,751,349.28

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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.