Home / 12,943,628.30-19,415,442.45-12,145,810.70

Finding the Fourth Proportional to 12,943,628.30, 19,415,442.45 and 12,145,810.70

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Solution

The fourth proportional to 12,943,628.30, 19,415,442.45 and 12,145,810.70 is: 18,218,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943,628.30 : 19,415,442.45 = 12,145,810.70 : x
  2. Step 2: Convert to fraction form
    12,943,628.30/19,415,442.45 = 12,145,810.70/x
  3. Step 3: Cross multiply
    12,943,628.30x = 19,415,442.45 × 12,145,810.70
  4. Step 4: Simplify right side
    12,943,628.30x = 235,816,288,654,444.19
  5. Step 5: Solve for x
    x = 235,816,288,654,444.19/12,943,628.30
  6. Step 6: Final answer
    x = 18,218,716.05

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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.