Home / 12,356,802.77-18,538,291.26-8,720,632.31

Finding the Fourth Proportional to 12,356,802.77, 18,538,291.26 and 8,720,632.31

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Solution

The fourth proportional to 12,356,802.77, 18,538,291.26 and 8,720,632.31 is: 13,083,127.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,802.77 : 18,538,291.26 = 8,720,632.31 : x
  2. Step 2: Convert to fraction form
    12,356,802.77/18,538,291.26 = 8,720,632.31/x
  3. Step 3: Cross multiply
    12,356,802.77x = 18,538,291.26 × 8,720,632.31
  4. Step 4: Simplify right side
    12,356,802.77x = 161,665,621,641,455.16
  5. Step 5: Solve for x
    x = 161,665,621,641,455.16/12,356,802.77
  6. Step 6: Final answer
    x = 13,083,127.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.