Home / 21,870,003.70-32,805,005.55-21,030,195.70

Finding the Fourth Proportional to 21,870,003.70, 32,805,005.55 and 21,030,195.70

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Solution

The fourth proportional to 21,870,003.70, 32,805,005.55 and 21,030,195.70 is: 31,545,293.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,003.70 : 32,805,005.55 = 21,030,195.70 : x
  2. Step 2: Convert to fraction form
    21,870,003.70/32,805,005.55 = 21,030,195.70/x
  3. Step 3: Cross multiply
    21,870,003.70x = 32,805,005.55 × 21,030,195.70
  4. Step 4: Simplify right side
    21,870,003.70x = 689,895,686,656,086.12
  5. Step 5: Solve for x
    x = 689,895,686,656,086.12/21,870,003.70
  6. Step 6: Final answer
    x = 31,545,293.55

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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.