Home / 39,957,784.16-55,141,742.32-21,623,069.84

Finding the Fourth Proportional to 39,957,784.16, 55,141,742.32 and 21,623,069.84

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Solution

The fourth proportional to 39,957,784.16, 55,141,742.32 and 21,623,069.84 is: 29,839,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,784.16 : 55,141,742.32 = 21,623,069.84 : x
  2. Step 2: Convert to fraction form
    39,957,784.16/55,141,742.32 = 21,623,069.84/x
  3. Step 3: Cross multiply
    39,957,784.16x = 55,141,742.32 × 21,623,069.84
  4. Step 4: Simplify right side
    39,957,784.16x = 1,192,333,745,284,643.75
  5. Step 5: Solve for x
    x = 1,192,333,745,284,643.75/39,957,784.16
  6. Step 6: Final answer
    x = 29,839,836.48

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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.