Home / 28,611,772.60-42,917,658.90-19,541,846.20

Finding the Fourth Proportional to 28,611,772.60, 42,917,658.90 and 19,541,846.20

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Solution

The fourth proportional to 28,611,772.60, 42,917,658.90 and 19,541,846.20 is: 29,312,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611,772.60 : 42,917,658.90 = 19,541,846.20 : x
  2. Step 2: Convert to fraction form
    28,611,772.60/42,917,658.90 = 19,541,846.20/x
  3. Step 3: Cross multiply
    28,611,772.60x = 42,917,658.90 × 19,541,846.20
  4. Step 4: Simplify right side
    28,611,772.60x = 838,690,289,487,861.12
  5. Step 5: Solve for x
    x = 838,690,289,487,861.12/28,611,772.60
  6. Step 6: Final answer
    x = 29,312,769.30

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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.