Home / 13,420,097.83-18,519,979.86-7,460,064.28

Finding the Fourth Proportional to 13,420,097.83, 18,519,979.86 and 7,460,064.28

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Solution

The fourth proportional to 13,420,097.83, 18,519,979.86 and 7,460,064.28 is: 10,295,024.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,097.83 : 18,519,979.86 = 7,460,064.28 : x
  2. Step 2: Convert to fraction form
    13,420,097.83/18,519,979.86 = 7,460,064.28/x
  3. Step 3: Cross multiply
    13,420,097.83x = 18,519,979.86 × 7,460,064.28
  4. Step 4: Simplify right side
    13,420,097.83x = 138,160,240,243,055.38
  5. Step 5: Solve for x
    x = 138,160,240,243,055.38/13,420,097.83
  6. Step 6: Final answer
    x = 10,295,024.82

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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.