Home / 40,152,933.68-55,411,399.08-21,818,218.64

Finding the Fourth Proportional to 40,152,933.68, 55,411,399.08 and 21,818,218.64

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Solution

The fourth proportional to 40,152,933.68, 55,411,399.08 and 21,818,218.64 is: 30,109,332.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,152,933.68 : 55,411,399.08 = 21,818,218.64 : x
  2. Step 2: Convert to fraction form
    40,152,933.68/55,411,399.08 = 21,818,218.64/x
  3. Step 3: Cross multiply
    40,152,933.68x = 55,411,399.08 × 21,818,218.64
  4. Step 4: Simplify right side
    40,152,933.68x = 1,208,978,020,275,734.75
  5. Step 5: Solve for x
    x = 1,208,978,020,275,734.75/40,152,933.68
  6. Step 6: Final answer
    x = 30,109,332.23

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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.