Home / 56,128,401.75-84,192,602.69-13,578,129.75

Finding the Fourth Proportional to 56,128,401.75, 84,192,602.69 and 13,578,129.75

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Solution

The fourth proportional to 56,128,401.75, 84,192,602.69 and 13,578,129.75 is: 20,367,194.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,128,401.75 : 84,192,602.69 = 13,578,129.75 : x
  2. Step 2: Convert to fraction form
    56,128,401.75/84,192,602.69 = 13,578,129.75/x
  3. Step 3: Cross multiply
    56,128,401.75x = 84,192,602.69 × 13,578,129.75
  4. Step 4: Simplify right side
    56,128,401.75x = 1,143,178,083,247,128.50
  5. Step 5: Solve for x
    x = 1,143,178,083,247,128.50/56,128,401.75
  6. Step 6: Final answer
    x = 20,367,194.64

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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.