Home / 19,990,020.38-29,985,034.82-7,210,523.81

Finding the Fourth Proportional to 19,990,020.38, 29,985,034.82 and 7,210,523.81

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Solution

The fourth proportional to 19,990,020.38, 29,985,034.82 and 7,210,523.81 is: 10,815,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990,020.38 : 29,985,034.82 = 7,210,523.81 : x
  2. Step 2: Convert to fraction form
    19,990,020.38/29,985,034.82 = 7,210,523.81/x
  3. Step 3: Cross multiply
    19,990,020.38x = 29,985,034.82 × 7,210,523.81
  4. Step 4: Simplify right side
    19,990,020.38x = 216,207,807,552,199.03
  5. Step 5: Solve for x
    x = 216,207,807,552,199.03/19,990,020.38
  6. Step 6: Final answer
    x = 10,815,787.25

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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.