Home / 18,868,043.61-28,302,694.63-5,220,047.10

Finding the Fourth Proportional to 18,868,043.61, 28,302,694.63 and 5,220,047.10

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Solution

The fourth proportional to 18,868,043.61, 28,302,694.63 and 5,220,047.10 is: 7,830,244.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868,043.61 : 28,302,694.63 = 5,220,047.10 : x
  2. Step 2: Convert to fraction form
    18,868,043.61/28,302,694.63 = 5,220,047.10/x
  3. Step 3: Cross multiply
    18,868,043.61x = 28,302,694.63 × 5,220,047.10
  4. Step 4: Simplify right side
    18,868,043.61x = 147,741,399,068,355.47
  5. Step 5: Solve for x
    x = 147,741,399,068,355.47/18,868,043.61
  6. Step 6: Final answer
    x = 7,830,244.73

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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.