Home / 56,128,407-84,192,610.56-13,578,135

Finding the Fourth Proportional to 56,128,407, 84,192,610.56 and 13,578,135

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Solution

The fourth proportional to 56,128,407, 84,192,610.56 and 13,578,135 is: 20,367,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,128,407 : 84,192,610.56 = 13,578,135 : x
  2. Step 2: Convert to fraction form
    56,128,407/84,192,610.56 = 13,578,135/x
  3. Step 3: Cross multiply
    56,128,407x = 84,192,610.56 × 13,578,135
  4. Step 4: Simplify right side
    56,128,407x = 1,143,178,632,186,105.75
  5. Step 5: Solve for x
    x = 1,143,178,632,186,105.75/56,128,407
  6. Step 6: Final answer
    x = 20,367,202.51

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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.