Home / 28,248,279.40-42,372,419.10-21,870,987.40

Finding the Fourth Proportional to 28,248,279.40, 42,372,419.10 and 21,870,987.40

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Solution

The fourth proportional to 28,248,279.40, 42,372,419.10 and 21,870,987.40 is: 32,806,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248,279.40 : 42,372,419.10 = 21,870,987.40 : x
  2. Step 2: Convert to fraction form
    28,248,279.40/42,372,419.10 = 21,870,987.40/x
  3. Step 3: Cross multiply
    28,248,279.40x = 42,372,419.10 × 21,870,987.40
  4. Step 4: Simplify right side
    28,248,279.40x = 926,726,644,243,619.25
  5. Step 5: Solve for x
    x = 926,726,644,243,619.25/28,248,279.40
  6. Step 6: Final answer
    x = 32,806,481.10

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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.