Home / 21,290,707.18-31,917,638.58-18,073,265.68

Finding the Fourth Proportional to 21,290,707.18, 31,917,638.58 and 18,073,265.68

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Solution

The fourth proportional to 21,290,707.18, 31,917,638.58 and 18,073,265.68 is: 27,094,260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,707.18 : 31,917,638.58 = 18,073,265.68 : x
  2. Step 2: Convert to fraction form
    21,290,707.18/31,917,638.58 = 18,073,265.68/x
  3. Step 3: Cross multiply
    21,290,707.18x = 31,917,638.58 × 18,073,265.68
  4. Step 4: Simplify right side
    21,290,707.18x = 576,855,961,934,557.88
  5. Step 5: Solve for x
    x = 576,855,961,934,557.88/21,290,707.18
  6. Step 6: Final answer
    x = 27,094,260.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.