Home / 28,146,763.68-38,842,236.36-15,756,958.59

Finding the Fourth Proportional to 28,146,763.68, 38,842,236.36 and 15,756,958.59

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Solution

The fourth proportional to 28,146,763.68, 38,842,236.36 and 15,756,958.59 is: 21,744,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146,763.68 : 38,842,236.36 = 15,756,958.59 : x
  2. Step 2: Convert to fraction form
    28,146,763.68/38,842,236.36 = 15,756,958.59/x
  3. Step 3: Cross multiply
    28,146,763.68x = 38,842,236.36 × 15,756,958.59
  4. Step 4: Simplify right side
    28,146,763.68x = 612,035,509,867,512.38
  5. Step 5: Solve for x
    x = 612,035,509,867,512.38/28,146,763.68
  6. Step 6: Final answer
    x = 21,744,436.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.