Home / 28,081,808.40-42,122,712.60-15,988,573.20

Finding the Fourth Proportional to 28,081,808.40, 42,122,712.60 and 15,988,573.20

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Solution

The fourth proportional to 28,081,808.40, 42,122,712.60 and 15,988,573.20 is: 23,982,859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,808.40 : 42,122,712.60 = 15,988,573.20 : x
  2. Step 2: Convert to fraction form
    28,081,808.40/42,122,712.60 = 15,988,573.20/x
  3. Step 3: Cross multiply
    28,081,808.40x = 42,122,712.60 × 15,988,573.20
  4. Step 4: Simplify right side
    28,081,808.40x = 673,482,073,787,662.25
  5. Step 5: Solve for x
    x = 673,482,073,787,662.25/28,081,808.40
  6. Step 6: Final answer
    x = 23,982,859.80

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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.