Home / 19,122,979.76-26,388,944.22-10,420,966.90

Finding the Fourth Proportional to 19,122,979.76, 26,388,944.22 and 10,420,966.90

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Solution

The fourth proportional to 19,122,979.76, 26,388,944.22 and 10,420,966.90 is: 14,380,515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122,979.76 : 26,388,944.22 = 10,420,966.90 : x
  2. Step 2: Convert to fraction form
    19,122,979.76/26,388,944.22 = 10,420,966.90/x
  3. Step 3: Cross multiply
    19,122,979.76x = 26,388,944.22 × 10,420,966.90
  4. Step 4: Simplify right side
    19,122,979.76x = 274,998,314,242,566.31
  5. Step 5: Solve for x
    x = 274,998,314,242,566.31/19,122,979.76
  6. Step 6: Final answer
    x = 14,380,515.89

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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.