Home / 12,219,710.70-18,340,063.65-5,406,768.30

Finding the Fourth Proportional to 12,219,710.70, 18,340,063.65 and 5,406,768.30

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Solution

The fourth proportional to 12,219,710.70, 18,340,063.65 and 5,406,768.30 is: 8,114,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,710.70 : 18,340,063.65 = 5,406,768.30 : x
  2. Step 2: Convert to fraction form
    12,219,710.70/18,340,063.65 = 5,406,768.30/x
  3. Step 3: Cross multiply
    12,219,710.70x = 18,340,063.65 × 5,406,768.30
  4. Step 4: Simplify right side
    12,219,710.70x = 99,160,474,762,802.28
  5. Step 5: Solve for x
    x = 99,160,474,762,802.28/12,219,710.70
  6. Step 6: Final answer
    x = 8,114,797.25

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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.