Home / 21,010,381.66-28,994,327.90-11,352,589.66

Finding the Fourth Proportional to 21,010,381.66, 28,994,327.90 and 11,352,589.66

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Solution

The fourth proportional to 21,010,381.66, 28,994,327.90 and 11,352,589.66 is: 15,666,574.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010,381.66 : 28,994,327.90 = 11,352,589.66 : x
  2. Step 2: Convert to fraction form
    21,010,381.66/28,994,327.90 = 11,352,589.66/x
  3. Step 3: Cross multiply
    21,010,381.66x = 28,994,327.90 × 11,352,589.66
  4. Step 4: Simplify right side
    21,010,381.66x = 329,160,707,116,189.50
  5. Step 5: Solve for x
    x = 329,160,707,116,189.50/21,010,381.66
  6. Step 6: Final answer
    x = 15,666,574.38

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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.