Home / 18,875,916.91-28,309,274.42-5,228,708.86

Finding the Fourth Proportional to 18,875,916.91, 28,309,274.42 and 5,228,708.86

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Solution

The fourth proportional to 18,875,916.91, 28,309,274.42 and 5,228,708.86 is: 7,841,788.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875,916.91 : 28,309,274.42 = 5,228,708.86 : x
  2. Step 2: Convert to fraction form
    18,875,916.91/28,309,274.42 = 5,228,708.86/x
  3. Step 3: Cross multiply
    18,875,916.91x = 28,309,274.42 × 5,228,708.86
  4. Step 4: Simplify right side
    18,875,916.91x = 148,020,953,989,268.41
  5. Step 5: Solve for x
    x = 148,020,953,989,268.41/18,875,916.91
  6. Step 6: Final answer
    x = 7,841,788.81

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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.