Home / 30,486,288.54-45,738,415.89-12,281,115.48

Finding the Fourth Proportional to 30,486,288.54, 45,738,415.89 and 12,281,115.48

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Solution

The fourth proportional to 30,486,288.54, 45,738,415.89 and 12,281,115.48 is: 18,425,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486,288.54 : 45,738,415.89 = 12,281,115.48 : x
  2. Step 2: Convert to fraction form
    30,486,288.54/45,738,415.89 = 12,281,115.48/x
  3. Step 3: Cross multiply
    30,486,288.54x = 45,738,415.89 × 12,281,115.48
  4. Step 4: Simplify right side
    30,486,288.54x = 561,718,767,417,357
  5. Step 5: Solve for x
    x = 561,718,767,417,357/30,486,288.54
  6. Step 6: Final answer
    x = 18,425,291.97

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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.