Home / 19,875,761.90-27,428,386.42-11,173,973.21

Finding the Fourth Proportional to 19,875,761.90, 27,428,386.42 and 11,173,973.21

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Solution

The fourth proportional to 19,875,761.90, 27,428,386.42 and 11,173,973.21 is: 15,419,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875,761.90 : 27,428,386.42 = 11,173,973.21 : x
  2. Step 2: Convert to fraction form
    19,875,761.90/27,428,386.42 = 11,173,973.21/x
  3. Step 3: Cross multiply
    19,875,761.90x = 27,428,386.42 × 11,173,973.21
  4. Step 4: Simplify right side
    19,875,761.90x = 306,484,055,050,607.88
  5. Step 5: Solve for x
    x = 306,484,055,050,607.88/19,875,761.90
  6. Step 6: Final answer
    x = 15,419,990.27

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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.