Home / 20,574,088.16-30,862,414.16-5,428,033.76

Finding the Fourth Proportional to 20,574,088.16, 30,862,414.16 and 5,428,033.76

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Solution

The fourth proportional to 20,574,088.16, 30,862,414.16 and 5,428,033.76 is: 8,142,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574,088.16 : 30,862,414.16 = 5,428,033.76 : x
  2. Step 2: Convert to fraction form
    20,574,088.16/30,862,414.16 = 5,428,033.76/x
  3. Step 3: Cross multiply
    20,574,088.16x = 30,862,414.16 × 5,428,033.76
  4. Step 4: Simplify right side
    20,574,088.16x = 167,522,225,975,582.03
  5. Step 5: Solve for x
    x = 167,522,225,975,582.03/20,574,088.16
  6. Step 6: Final answer
    x = 8,142,388.85

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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.