Home / 2,135,987.95-2,947,658.45-1,169,109.78

Finding the Fourth Proportional to 2,135,987.95, 2,947,658.45 and 1,169,109.78

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Solution

The fourth proportional to 2,135,987.95, 2,947,658.45 and 1,169,109.78 is: 1,613,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135,987.95 : 2,947,658.45 = 1,169,109.78 : x
  2. Step 2: Convert to fraction form
    2,135,987.95/2,947,658.45 = 1,169,109.78/x
  3. Step 3: Cross multiply
    2,135,987.95x = 2,947,658.45 × 1,169,109.78
  4. Step 4: Simplify right side
    2,135,987.95x = 3,446,136,321,994.64
  5. Step 5: Solve for x
    x = 3,446,136,321,994.64/2,135,987.95
  6. Step 6: Final answer
    x = 1,613,368.80

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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.