Home / 210,015,385.80-314,928,600.30-80,579,977.80

Finding the Fourth Proportional to 210,015,385.80, 314,928,600.30 and 80,579,977.80

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Solution

The fourth proportional to 210,015,385.80, 314,928,600.30 and 80,579,977.80 is: 120,833,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,385.80 : 314,928,600.30 = 80,579,977.80 : x
  2. Step 2: Convert to fraction form
    210,015,385.80/314,928,600.30 = 80,579,977.80/x
  3. Step 3: Cross multiply
    210,015,385.80x = 314,928,600.30 × 80,579,977.80
  4. Step 4: Simplify right side
    210,015,385.80x = 25,376,939,620,759,072
  5. Step 5: Solve for x
    x = 25,376,939,620,759,072/210,015,385.80
  6. Step 6: Final answer
    x = 120,833,716.65

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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.