Home / 12,756,809.69-19,135,290.65-3,172,188.22

Finding the Fourth Proportional to 12,756,809.69, 19,135,290.65 and 3,172,188.22

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Solution

The fourth proportional to 12,756,809.69, 19,135,290.65 and 3,172,188.22 is: 4,758,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756,809.69 : 19,135,290.65 = 3,172,188.22 : x
  2. Step 2: Convert to fraction form
    12,756,809.69/19,135,290.65 = 3,172,188.22/x
  3. Step 3: Cross multiply
    12,756,809.69x = 19,135,290.65 × 3,172,188.22
  4. Step 4: Simplify right side
    12,756,809.69x = 60,700,743,544,810.63
  5. Step 5: Solve for x
    x = 60,700,743,544,810.63/12,756,809.69
  6. Step 6: Final answer
    x = 4,758,301.25

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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.