Home / 20,786,551.26-28,686,531.84-12,529,237.52

Finding the Fourth Proportional to 20,786,551.26, 28,686,531.84 and 12,529,237.52

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Solution

The fourth proportional to 20,786,551.26, 28,686,531.84 and 12,529,237.52 is: 17,291,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,786,551.26 : 28,686,531.84 = 12,529,237.52 : x
  2. Step 2: Convert to fraction form
    20,786,551.26/28,686,531.84 = 12,529,237.52/x
  3. Step 3: Cross multiply
    20,786,551.26x = 28,686,531.84 × 12,529,237.52
  4. Step 4: Simplify right side
    20,786,551.26x = 359,420,371,048,402.62
  5. Step 5: Solve for x
    x = 359,420,371,048,402.62/20,786,551.26
  6. Step 6: Final answer
    x = 17,291,005.45

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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.