Home / 20,743,460.10-28,628,683.47-11,578,005.54

Finding the Fourth Proportional to 20,743,460.10, 28,628,683.47 and 11,578,005.54

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Solution

The fourth proportional to 20,743,460.10, 28,628,683.47 and 11,578,005.54 is: 15,979,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,460.10 : 28,628,683.47 = 11,578,005.54 : x
  2. Step 2: Convert to fraction form
    20,743,460.10/28,628,683.47 = 11,578,005.54/x
  3. Step 3: Cross multiply
    20,743,460.10x = 28,628,683.47 × 11,578,005.54
  4. Step 4: Simplify right side
    20,743,460.10x = 331,463,055,818,566.38
  5. Step 5: Solve for x
    x = 331,463,055,818,566.38/20,743,460.10
  6. Step 6: Final answer
    x = 15,979,159.42

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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.