Home / 12,858,700.80-19,288,051.20-5,666,532.60

Finding the Fourth Proportional to 12,858,700.80, 19,288,051.20 and 5,666,532.60

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Solution

The fourth proportional to 12,858,700.80, 19,288,051.20 and 5,666,532.60 is: 8,499,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858,700.80 : 19,288,051.20 = 5,666,532.60 : x
  2. Step 2: Convert to fraction form
    12,858,700.80/19,288,051.20 = 5,666,532.60/x
  3. Step 3: Cross multiply
    12,858,700.80x = 19,288,051.20 × 5,666,532.60
  4. Step 4: Simplify right side
    12,858,700.80x = 109,296,370,915,269.11
  5. Step 5: Solve for x
    x = 109,296,370,915,269.11/12,858,700.80
  6. Step 6: Final answer
    x = 8,499,798.90

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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.