Home / 20,388,003.80-30,582,005.70-11,318,077.40

Finding the Fourth Proportional to 20,388,003.80, 30,582,005.70 and 11,318,077.40

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Solution

The fourth proportional to 20,388,003.80, 30,582,005.70 and 11,318,077.40 is: 16,977,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388,003.80 : 30,582,005.70 = 11,318,077.40 : x
  2. Step 2: Convert to fraction form
    20,388,003.80/30,582,005.70 = 11,318,077.40/x
  3. Step 3: Cross multiply
    20,388,003.80x = 30,582,005.70 × 11,318,077.40
  4. Step 4: Simplify right side
    20,388,003.80x = 346,129,507,559,841.19
  5. Step 5: Solve for x
    x = 346,129,507,559,841.19/20,388,003.80
  6. Step 6: Final answer
    x = 16,977,116.10

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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.