Home / 56,128,401-84,192,601.56-13,578,129

Finding the Fourth Proportional to 56,128,401, 84,192,601.56 and 13,578,129

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Solution

The fourth proportional to 56,128,401, 84,192,601.56 and 13,578,129 is: 20,367,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,128,401 : 84,192,601.56 = 13,578,129 : x
  2. Step 2: Convert to fraction form
    56,128,401/84,192,601.56 = 13,578,129/x
  3. Step 3: Cross multiply
    56,128,401x = 84,192,601.56 × 13,578,129
  4. Step 4: Simplify right side
    56,128,401x = 1,143,178,004,827,281.25
  5. Step 5: Solve for x
    x = 1,143,178,004,827,281.25/56,128,401
  6. Step 6: Final answer
    x = 20,367,193.51

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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.