Home / 21,013,290.65-31,490,306.44-9,922,528.28

Finding the Fourth Proportional to 21,013,290.65, 31,490,306.44 and 9,922,528.28

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Solution

The fourth proportional to 21,013,290.65, 31,490,306.44 and 9,922,528.28 is: 14,869,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013,290.65 : 31,490,306.44 = 9,922,528.28 : x
  2. Step 2: Convert to fraction form
    21,013,290.65/31,490,306.44 = 9,922,528.28/x
  3. Step 3: Cross multiply
    21,013,290.65x = 31,490,306.44 × 9,922,528.28
  4. Step 4: Simplify right side
    21,013,290.65x = 312,463,456,250,685.56
  5. Step 5: Solve for x
    x = 312,463,456,250,685.56/21,013,290.65
  6. Step 6: Final answer
    x = 14,869,801.28

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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.