Home / 38,178,028-57,276,008.70-12,619,034.67

Finding the Fourth Proportional to 38,178,028, 57,276,008.70 and 12,619,034.67

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Solution

The fourth proportional to 38,178,028, 57,276,008.70 and 12,619,034.67 is: 18,931,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178,028 : 57,276,008.70 = 12,619,034.67 : x
  2. Step 2: Convert to fraction form
    38,178,028/57,276,008.70 = 12,619,034.67/x
  3. Step 3: Cross multiply
    38,178,028x = 57,276,008.70 × 12,619,034.67
  4. Step 4: Simplify right side
    38,178,028x = 722,767,939,544,521.62
  5. Step 5: Solve for x
    x = 722,767,939,544,521.62/38,178,028
  6. Step 6: Final answer
    x = 18,931,515.78

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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.