Home / 12,939,219.70-19,406,107.95-6,543,459.70

Finding the Fourth Proportional to 12,939,219.70, 19,406,107.95 and 6,543,459.70

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Solution

The fourth proportional to 12,939,219.70, 19,406,107.95 and 6,543,459.70 is: 9,813,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,219.70 : 19,406,107.95 = 6,543,459.70 : x
  2. Step 2: Convert to fraction form
    12,939,219.70/19,406,107.95 = 6,543,459.70/x
  3. Step 3: Cross multiply
    12,939,219.70x = 19,406,107.95 × 6,543,459.70
  4. Step 4: Simplify right side
    12,939,219.70x = 126,983,085,304,674.61
  5. Step 5: Solve for x
    x = 126,983,085,304,674.61/12,939,219.70
  6. Step 6: Final answer
    x = 9,813,813.22

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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.