Home / 18,849,145.80-28,265,424.30-7,485,817.80

Finding the Fourth Proportional to 18,849,145.80, 28,265,424.30 and 7,485,817.80

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Solution

The fourth proportional to 18,849,145.80, 28,265,424.30 and 7,485,817.80 is: 11,225,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849,145.80 : 28,265,424.30 = 7,485,817.80 : x
  2. Step 2: Convert to fraction form
    18,849,145.80/28,265,424.30 = 7,485,817.80/x
  3. Step 3: Cross multiply
    18,849,145.80x = 28,265,424.30 × 7,485,817.80
  4. Step 4: Simplify right side
    18,849,145.80x = 211,589,816,349,492.53
  5. Step 5: Solve for x
    x = 211,589,816,349,492.53/18,849,145.80
  6. Step 6: Final answer
    x = 11,225,432.63

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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.