Home / 19,711,352.70-29,567,029.05-12,908,907.90

Finding the Fourth Proportional to 19,711,352.70, 29,567,029.05 and 12,908,907.90

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Solution

The fourth proportional to 19,711,352.70, 29,567,029.05 and 12,908,907.90 is: 19,363,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711,352.70 : 29,567,029.05 = 12,908,907.90 : x
  2. Step 2: Convert to fraction form
    19,711,352.70/29,567,029.05 = 12,908,907.90/x
  3. Step 3: Cross multiply
    19,711,352.70x = 29,567,029.05 × 12,908,907.90
  4. Step 4: Simplify right side
    19,711,352.70x = 381,678,054,883,074.50
  5. Step 5: Solve for x
    x = 381,678,054,883,074.50/19,711,352.70
  6. Step 6: Final answer
    x = 19,363,361.85

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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.