Home / 20,620,111.84-28,455,773.06-11,328,283.48

Finding the Fourth Proportional to 20,620,111.84, 28,455,773.06 and 11,328,283.48

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Solution

The fourth proportional to 20,620,111.84, 28,455,773.06 and 11,328,283.48 is: 15,633,041.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,111.84 : 28,455,773.06 = 11,328,283.48 : x
  2. Step 2: Convert to fraction form
    20,620,111.84/28,455,773.06 = 11,328,283.48/x
  3. Step 3: Cross multiply
    20,620,111.84x = 28,455,773.06 × 11,328,283.48
  4. Step 4: Simplify right side
    20,620,111.84x = 322,355,063,866,227.06
  5. Step 5: Solve for x
    x = 322,355,063,866,227.06/20,620,111.84
  6. Step 6: Final answer
    x = 15,633,041.49

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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.