Home / 20,206,774.18-30,329,323.79-12,507,128.27

Finding the Fourth Proportional to 20,206,774.18, 30,329,323.79 and 12,507,128.27

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Solution

The fourth proportional to 20,206,774.18, 30,329,323.79 and 12,507,128.27 is: 18,772,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,774.18 : 30,329,323.79 = 12,507,128.27 : x
  2. Step 2: Convert to fraction form
    20,206,774.18/30,329,323.79 = 12,507,128.27/x
  3. Step 3: Cross multiply
    20,206,774.18x = 30,329,323.79 × 12,507,128.27
  4. Step 4: Simplify right side
    20,206,774.18x = 379,332,742,883,445.25
  5. Step 5: Solve for x
    x = 379,332,742,883,445.25/20,206,774.18
  6. Step 6: Final answer
    x = 18,772,553.18

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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.