Home / 40,464,184.86-55,840,455.81-21,879,192.51

Finding the Fourth Proportional to 40,464,184.86, 55,840,455.81 and 21,879,192.51

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Solution

The fourth proportional to 40,464,184.86, 55,840,455.81 and 21,879,192.51 is: 30,193,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,464,184.86 : 55,840,455.81 = 21,879,192.51 : x
  2. Step 2: Convert to fraction form
    40,464,184.86/55,840,455.81 = 21,879,192.51/x
  3. Step 3: Cross multiply
    40,464,184.86x = 55,840,455.81 × 21,879,192.51
  4. Step 4: Simplify right side
    40,464,184.86x = 1,221,744,082,513,138.25
  5. Step 5: Solve for x
    x = 1,221,744,082,513,138.25/40,464,184.86
  6. Step 6: Final answer
    x = 30,193,221.16

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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.