Home / 18,790,272.02-28,185,423.48-5,143,531.43

Finding the Fourth Proportional to 18,790,272.02, 28,185,423.48 and 5,143,531.43

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Solution

The fourth proportional to 18,790,272.02, 28,185,423.48 and 5,143,531.43 is: 7,715,301.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790,272.02 : 28,185,423.48 = 5,143,531.43 : x
  2. Step 2: Convert to fraction form
    18,790,272.02/28,185,423.48 = 5,143,531.43/x
  3. Step 3: Cross multiply
    18,790,272.02x = 28,185,423.48 × 5,143,531.43
  4. Step 4: Simplify right side
    18,790,272.02x = 144,972,611,396,312.84
  5. Step 5: Solve for x
    x = 144,972,611,396,312.84/18,790,272.02
  6. Step 6: Final answer
    x = 7,715,301.37

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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.