Home / 22,158,157.40-30,578,140.54-12,868,012.26

Finding the Fourth Proportional to 22,158,157.40, 30,578,140.54 and 12,868,012.26

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Solution

The fourth proportional to 22,158,157.40, 30,578,140.54 and 12,868,012.26 is: 17,757,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,158,157.40 : 30,578,140.54 = 12,868,012.26 : x
  2. Step 2: Convert to fraction form
    22,158,157.40/30,578,140.54 = 12,868,012.26/x
  3. Step 3: Cross multiply
    22,158,157.40x = 30,578,140.54 × 12,868,012.26
  4. Step 4: Simplify right side
    22,158,157.40x = 393,479,887,356,723
  5. Step 5: Solve for x
    x = 393,479,887,356,723/22,158,157.40
  6. Step 6: Final answer
    x = 17,757,789.16

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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.