Home / 39,872,088.63-55,023,504.45-21,537,374.31

Finding the Fourth Proportional to 39,872,088.63, 55,023,504.45 and 21,537,374.31

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Solution

The fourth proportional to 39,872,088.63, 55,023,504.45 and 21,537,374.31 is: 29,721,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872,088.63 : 55,023,504.45 = 21,537,374.31 : x
  2. Step 2: Convert to fraction form
    39,872,088.63/55,023,504.45 = 21,537,374.31/x
  3. Step 3: Cross multiply
    39,872,088.63x = 55,023,504.45 × 21,537,374.31
  4. Step 4: Simplify right side
    39,872,088.63x = 1,185,061,810,804,796.25
  5. Step 5: Solve for x
    x = 1,185,061,810,804,796.25/39,872,088.63
  6. Step 6: Final answer
    x = 29,721,588.50

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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.