Home / 28,017,940.80-42,026,911.20-7,823,150.40

Finding the Fourth Proportional to 28,017,940.80, 42,026,911.20 and 7,823,150.40

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Solution

The fourth proportional to 28,017,940.80, 42,026,911.20 and 7,823,150.40 is: 11,734,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017,940.80 : 42,026,911.20 = 7,823,150.40 : x
  2. Step 2: Convert to fraction form
    28,017,940.80/42,026,911.20 = 7,823,150.40/x
  3. Step 3: Cross multiply
    28,017,940.80x = 42,026,911.20 × 7,823,150.40
  4. Step 4: Simplify right side
    28,017,940.80x = 328,782,847,165,044.50
  5. Step 5: Solve for x
    x = 328,782,847,165,044.50/28,017,940.80
  6. Step 6: Final answer
    x = 11,734,725.60

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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.