Home / 99,681,986.99-137,568,047.28-55,637,578.46

Finding the Fourth Proportional to 99,681,986.99, 137,568,047.28 and 55,637,578.46

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Solution

The fourth proportional to 99,681,986.99, 137,568,047.28 and 55,637,578.46 is: 76,783,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,681,986.99 : 137,568,047.28 = 55,637,578.46 : x
  2. Step 2: Convert to fraction form
    99,681,986.99/137,568,047.28 = 55,637,578.46/x
  3. Step 3: Cross multiply
    99,681,986.99x = 137,568,047.28 × 55,637,578.46
  4. Step 4: Simplify right side
    99,681,986.99x = 7,653,953,024,129,990
  5. Step 5: Solve for x
    x = 7,653,953,024,129,990/99,681,986.99
  6. Step 6: Final answer
    x = 76,783,712.44

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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.