Home / 20,785,441.62-28,683,315.63-11,492,851.62

Finding the Fourth Proportional to 20,785,441.62, 28,683,315.63 and 11,492,851.62

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Solution

The fourth proportional to 20,785,441.62, 28,683,315.63 and 11,492,851.62 is: 15,859,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,441.62 : 28,683,315.63 = 11,492,851.62 : x
  2. Step 2: Convert to fraction form
    20,785,441.62/28,683,315.63 = 11,492,851.62/x
  3. Step 3: Cross multiply
    20,785,441.62x = 28,683,315.63 × 11,492,851.62
  4. Step 4: Simplify right side
    20,785,441.62x = 329,653,090,505,216.81
  5. Step 5: Solve for x
    x = 329,653,090,505,216.81/20,785,441.62
  6. Step 6: Final answer
    x = 15,859,806.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.