Home / 21,047,733.56-31,377,042.10-20,716,054.40

Finding the Fourth Proportional to 21,047,733.56, 31,377,042.10 and 20,716,054.40

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Solution

The fourth proportional to 21,047,733.56, 31,377,042.10 and 20,716,054.40 is: 30,882,589.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047,733.56 : 31,377,042.10 = 20,716,054.40 : x
  2. Step 2: Convert to fraction form
    21,047,733.56/31,377,042.10 = 20,716,054.40/x
  3. Step 3: Cross multiply
    21,047,733.56x = 31,377,042.10 × 20,716,054.40
  4. Step 4: Simplify right side
    21,047,733.56x = 650,008,511,054,690.25
  5. Step 5: Solve for x
    x = 650,008,511,054,690.25/21,047,733.56
  6. Step 6: Final answer
    x = 30,882,589.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.