Home / 15,778,534.26-21,772,718.50-9,161,829.32

Finding the Fourth Proportional to 15,778,534.26, 21,772,718.50 and 9,161,829.32

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Solution

The fourth proportional to 15,778,534.26, 21,772,718.50 and 9,161,829.32 is: 12,642,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778,534.26 : 21,772,718.50 = 9,161,829.32 : x
  2. Step 2: Convert to fraction form
    15,778,534.26/21,772,718.50 = 9,161,829.32/x
  3. Step 3: Cross multiply
    15,778,534.26x = 21,772,718.50 × 9,161,829.32
  4. Step 4: Simplify right side
    15,778,534.26x = 199,477,930,760,933.62
  5. Step 5: Solve for x
    x = 199,477,930,760,933.62/15,778,534.26
  6. Step 6: Final answer
    x = 12,642,361.29

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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.