Home / 20,643,986.16-30,954,023.64-6,992,557.20

Finding the Fourth Proportional to 20,643,986.16, 30,954,023.64 and 6,992,557.20

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Solution

The fourth proportional to 20,643,986.16, 30,954,023.64 and 6,992,557.20 is: 10,484,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,986.16 : 30,954,023.64 = 6,992,557.20 : x
  2. Step 2: Convert to fraction form
    20,643,986.16/30,954,023.64 = 6,992,557.20/x
  3. Step 3: Cross multiply
    20,643,986.16x = 30,954,023.64 × 6,992,557.20
  4. Step 4: Simplify right side
    20,643,986.16x = 216,447,780,872,852.22
  5. Step 5: Solve for x
    x = 216,447,780,872,852.22/20,643,986.16
  6. Step 6: Final answer
    x = 10,484,786.18

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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.