Home / 28,202,018.32-38,919,360.36-15,325,791.76

Finding the Fourth Proportional to 28,202,018.32, 38,919,360.36 and 15,325,791.76

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Solution

The fourth proportional to 28,202,018.32, 38,919,360.36 and 15,325,791.76 is: 21,149,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202,018.32 : 38,919,360.36 = 15,325,791.76 : x
  2. Step 2: Convert to fraction form
    28,202,018.32/38,919,360.36 = 15,325,791.76/x
  3. Step 3: Cross multiply
    28,202,018.32x = 38,919,360.36 × 15,325,791.76
  4. Step 4: Simplify right side
    28,202,018.32x = 596,470,012,309,758.62
  5. Step 5: Solve for x
    x = 596,470,012,309,758.62/28,202,018.32
  6. Step 6: Final answer
    x = 21,149,905.14

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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.