Home / 7,980,000.80-11,953,153.20-5,285,616.80

Finding the Fourth Proportional to 7,980,000.80, 11,953,153.20 and 5,285,616.80

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Solution

The fourth proportional to 7,980,000.80, 11,953,153.20 and 5,285,616.80 is: 7,917,265.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980,000.80 : 11,953,153.20 = 5,285,616.80 : x
  2. Step 2: Convert to fraction form
    7,980,000.80/11,953,153.20 = 5,285,616.80/x
  3. Step 3: Cross multiply
    7,980,000.80x = 11,953,153.20 × 5,285,616.80
  4. Step 4: Simplify right side
    7,980,000.80x = 63,179,787,366,893.75
  5. Step 5: Solve for x
    x = 63,179,787,366,893.75/7,980,000.80
  6. Step 6: Final answer
    x = 7,917,265.79

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1.5x scale

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.