Home / 21,677,211.80-32,505,320.10-12,082,405.40

Finding the Fourth Proportional to 21,677,211.80, 32,505,320.10 and 12,082,405.40

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Solution

The fourth proportional to 21,677,211.80, 32,505,320.10 and 12,082,405.40 is: 18,117,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,677,211.80 : 32,505,320.10 = 12,082,405.40 : x
  2. Step 2: Convert to fraction form
    21,677,211.80/32,505,320.10 = 12,082,405.40/x
  3. Step 3: Cross multiply
    21,677,211.80x = 32,505,320.10 × 12,082,405.40
  4. Step 4: Simplify right side
    21,677,211.80x = 392,742,455,104,968.56
  5. Step 5: Solve for x
    x = 392,742,455,104,968.56/21,677,211.80
  6. Step 6: Final answer
    x = 18,117,756.97

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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.