Home / 21,866,090.40-32,813,132.40-12,768,170.40

Finding the Fourth Proportional to 21,866,090.40, 32,813,132.40 and 12,768,170.40

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Solution

The fourth proportional to 21,866,090.40, 32,813,132.40 and 12,768,170.40 is: 19,160,428.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866,090.40 : 32,813,132.40 = 12,768,170.40 : x
  2. Step 2: Convert to fraction form
    21,866,090.40/32,813,132.40 = 12,768,170.40/x
  3. Step 3: Cross multiply
    21,866,090.40x = 32,813,132.40 × 12,768,170.40
  4. Step 4: Simplify right side
    21,866,090.40x = 418,963,665,840,960.94
  5. Step 5: Solve for x
    x = 418,963,665,840,960.94/21,866,090.40
  6. Step 6: Final answer
    x = 19,160,428.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.