Home / 21,618,215.35-29,830,193.89-12,914,539.77

Finding the Fourth Proportional to 21,618,215.35, 29,830,193.89 and 12,914,539.77

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Solution

The fourth proportional to 21,618,215.35, 29,830,193.89 and 12,914,539.77 is: 17,820,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618,215.35 : 29,830,193.89 = 12,914,539.77 : x
  2. Step 2: Convert to fraction form
    21,618,215.35/29,830,193.89 = 12,914,539.77/x
  3. Step 3: Cross multiply
    21,618,215.35x = 29,830,193.89 × 12,914,539.77
  4. Step 4: Simplify right side
    21,618,215.35x = 385,243,225,239,759.81
  5. Step 5: Solve for x
    x = 385,243,225,239,759.81/21,618,215.35
  6. Step 6: Final answer
    x = 17,820,306.58

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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.