Home / 56,128,400-84,192,600.06-13,578,128

Finding the Fourth Proportional to 56,128,400, 84,192,600.06 and 13,578,128

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Solution

The fourth proportional to 56,128,400, 84,192,600.06 and 13,578,128 is: 20,367,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,128,400 : 84,192,600.06 = 13,578,128 : x
  2. Step 2: Convert to fraction form
    56,128,400/84,192,600.06 = 13,578,128/x
  3. Step 3: Cross multiply
    56,128,400x = 84,192,600.06 × 13,578,128
  4. Step 4: Simplify right side
    56,128,400x = 1,143,177,900,267,487.75
  5. Step 5: Solve for x
    x = 1,143,177,900,267,487.75/56,128,400
  6. Step 6: Final answer
    x = 20,367,192.01

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1.5x scale

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.