Home / 19,173,611.70-28,776,747.15-7,822,206.90

Finding the Fourth Proportional to 19,173,611.70, 28,776,747.15 and 7,822,206.90

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Solution

The fourth proportional to 19,173,611.70, 28,776,747.15 and 7,822,206.90 is: 11,739,972.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173,611.70 : 28,776,747.15 = 7,822,206.90 : x
  2. Step 2: Convert to fraction form
    19,173,611.70/28,776,747.15 = 7,822,206.90/x
  3. Step 3: Cross multiply
    19,173,611.70x = 28,776,747.15 × 7,822,206.90
  4. Step 4: Simplify right side
    19,173,611.70x = 225,097,670,116,285.34
  5. Step 5: Solve for x
    x = 225,097,670,116,285.34/19,173,611.70
  6. Step 6: Final answer
    x = 11,739,972.29

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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.