Home / 20,380,028.77-28,124,562.02-11,087,665.50

Finding the Fourth Proportional to 20,380,028.77, 28,124,562.02 and 11,087,665.50

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Solution

The fourth proportional to 20,380,028.77, 28,124,562.02 and 11,087,665.50 is: 15,301,044.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380,028.77 : 28,124,562.02 = 11,087,665.50 : x
  2. Step 2: Convert to fraction form
    20,380,028.77/28,124,562.02 = 11,087,665.50/x
  3. Step 3: Cross multiply
    20,380,028.77x = 28,124,562.02 × 11,087,665.50
  4. Step 4: Simplify right side
    20,380,028.77x = 311,835,736,011,764.31
  5. Step 5: Solve for x
    x = 311,835,736,011,764.31/20,380,028.77
  6. Step 6: Final answer
    x = 15,301,044.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.