Home / 20,461,156.88-28,236,398.92-11,293,802.06

Finding the Fourth Proportional to 20,461,156.88, 28,236,398.92 and 11,293,802.06

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Solution

The fourth proportional to 20,461,156.88, 28,236,398.92 and 11,293,802.06 is: 15,585,448.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461,156.88 : 28,236,398.92 = 11,293,802.06 : x
  2. Step 2: Convert to fraction form
    20,461,156.88/28,236,398.92 = 11,293,802.06/x
  3. Step 3: Cross multiply
    20,461,156.88x = 28,236,398.92 × 11,293,802.06
  4. Step 4: Simplify right side
    20,461,156.88x = 318,896,300,120,261.25
  5. Step 5: Solve for x
    x = 318,896,300,120,261.25/20,461,156.88
  6. Step 6: Final answer
    x = 15,585,448.18

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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.