Home / 39,872,008-55,023,392.91-21,537,293.50

Finding the Fourth Proportional to 39,872,008, 55,023,392.91 and 21,537,293.50

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Solution

The fourth proportional to 39,872,008, 55,023,392.91 and 21,537,293.50 is: 29,721,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872,008 : 55,023,392.91 = 21,537,293.50 : x
  2. Step 2: Convert to fraction form
    39,872,008/55,023,392.91 = 21,537,293.50/x
  3. Step 3: Cross multiply
    39,872,008x = 55,023,392.91 × 21,537,293.50
  4. Step 4: Simplify right side
    39,872,008x = 1,185,054,962,468,489
  5. Step 5: Solve for x
    x = 1,185,054,962,468,489/39,872,008
  6. Step 6: Final answer
    x = 29,721,476.84

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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.