Home / 39,019,801.20-53,850,633.48-21,621,603.84

Finding the Fourth Proportional to 39,019,801.20, 53,850,633.48 and 21,621,603.84

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Solution

The fourth proportional to 39,019,801.20, 53,850,633.48 and 21,621,603.84 is: 29,839,646.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,019,801.20 : 53,850,633.48 = 21,621,603.84 : x
  2. Step 2: Convert to fraction form
    39,019,801.20/53,850,633.48 = 21,621,603.84/x
  3. Step 3: Cross multiply
    39,019,801.20x = 53,850,633.48 × 21,621,603.84
  4. Step 4: Simplify right side
    39,019,801.20x = 1,164,337,063,637,600.50
  5. Step 5: Solve for x
    x = 1,164,337,063,637,600.50/39,019,801.20
  6. Step 6: Final answer
    x = 29,839,646.23

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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.