Home / 51,551,010.20-77,324,765.70-13,212,900.20

Finding the Fourth Proportional to 51,551,010.20, 77,324,765.70 and 13,212,900.20

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Solution

The fourth proportional to 51,551,010.20, 77,324,765.70 and 13,212,900.20 is: 19,818,901.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,551,010.20 : 77,324,765.70 = 13,212,900.20 : x
  2. Step 2: Convert to fraction form
    51,551,010.20/77,324,765.70 = 13,212,900.20/x
  3. Step 3: Cross multiply
    51,551,010.20x = 77,324,765.70 × 13,212,900.20
  4. Step 4: Simplify right side
    51,551,010.20x = 1,021,684,412,182,483.12
  5. Step 5: Solve for x
    x = 1,021,684,412,182,483.12/51,551,010.20
  6. Step 6: Final answer
    x = 19,818,901.86

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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.