Home / 21,365,386.20-32,061,857.40-11,787,638.40

Finding the Fourth Proportional to 21,365,386.20, 32,061,857.40 and 11,787,638.40

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Solution

The fourth proportional to 21,365,386.20, 32,061,857.40 and 11,787,638.40 is: 17,689,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,365,386.20 : 32,061,857.40 = 11,787,638.40 : x
  2. Step 2: Convert to fraction form
    21,365,386.20/32,061,857.40 = 11,787,638.40/x
  3. Step 3: Cross multiply
    21,365,386.20x = 32,061,857.40 × 11,787,638.40
  4. Step 4: Simplify right side
    21,365,386.20x = 377,933,581,463,564.12
  5. Step 5: Solve for x
    x = 377,933,581,463,564.12/21,365,386.20
  6. Step 6: Final answer
    x = 17,689,059.21

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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.