Home / 70,481,876.32-105,826,596.80-39,418,393.87

Finding the Fourth Proportional to 70,481,876.32, 105,826,596.80 and 39,418,393.87

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Solution

The fourth proportional to 70,481,876.32, 105,826,596.80 and 39,418,393.87 is: 59,185,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,481,876.32 : 105,826,596.80 = 39,418,393.87 : x
  2. Step 2: Convert to fraction form
    70,481,876.32/105,826,596.80 = 39,418,393.87/x
  3. Step 3: Cross multiply
    70,481,876.32x = 105,826,596.80 × 39,418,393.87
  4. Step 4: Simplify right side
    70,481,876.32x = 4,171,514,474,519,273.50
  5. Step 5: Solve for x
    x = 4,171,514,474,519,273.50/70,481,876.32
  6. Step 6: Final answer
    x = 59,185,633.13

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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.