Home / 21,010,140.35-28,994,045.12-11,718,312.27

Finding the Fourth Proportional to 21,010,140.35, 28,994,045.12 and 11,718,312.27

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Solution

The fourth proportional to 21,010,140.35, 28,994,045.12 and 11,718,312.27 is: 16,171,299.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010,140.35 : 28,994,045.12 = 11,718,312.27 : x
  2. Step 2: Convert to fraction form
    21,010,140.35/28,994,045.12 = 11,718,312.27/x
  3. Step 3: Cross multiply
    21,010,140.35x = 28,994,045.12 × 11,718,312.27
  4. Step 4: Simplify right side
    21,010,140.35x = 339,761,274,628,038
  5. Step 5: Solve for x
    x = 339,761,274,628,038/21,010,140.35
  6. Step 6: Final answer
    x = 16,171,299.62

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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.