Home / 21,191,324.06-31,791,724.59-7,728,152.06

Finding the Fourth Proportional to 21,191,324.06, 31,791,724.59 and 7,728,152.06

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Solution

The fourth proportional to 21,191,324.06, 31,791,724.59 and 7,728,152.06 is: 11,593,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,324.06 : 31,791,724.59 = 7,728,152.06 : x
  2. Step 2: Convert to fraction form
    21,191,324.06/31,791,724.59 = 7,728,152.06/x
  3. Step 3: Cross multiply
    21,191,324.06x = 31,791,724.59 × 7,728,152.06
  4. Step 4: Simplify right side
    21,191,324.06x = 245,691,281,989,621.03
  5. Step 5: Solve for x
    x = 245,691,281,989,621.03/21,191,324.06
  6. Step 6: Final answer
    x = 11,593,956.15

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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.