Home / 39,040,312.71-53,875,636.66-21,637,781.45

Finding the Fourth Proportional to 39,040,312.71, 53,875,636.66 and 21,637,781.45

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Solution

The fourth proportional to 39,040,312.71, 53,875,636.66 and 21,637,781.45 is: 29,860,141.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,040,312.71 : 53,875,636.66 = 21,637,781.45 : x
  2. Step 2: Convert to fraction form
    39,040,312.71/53,875,636.66 = 21,637,781.45/x
  3. Step 3: Cross multiply
    39,040,312.71x = 53,875,636.66 × 21,637,781.45
  4. Step 4: Simplify right side
    39,040,312.71x = 1,165,749,251,528,687.75
  5. Step 5: Solve for x
    x = 1,165,749,251,528,687.75/39,040,312.71
  6. Step 6: Final answer
    x = 29,860,141.24

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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.