Home / 70,612,318.80-105,918,322.41-18,796,933.08

Finding the Fourth Proportional to 70,612,318.80, 105,918,322.41 and 18,796,933.08

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Solution

The fourth proportional to 70,612,318.80, 105,918,322.41 and 18,796,933.08 is: 28,195,358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,612,318.80 : 105,918,322.41 = 18,796,933.08 : x
  2. Step 2: Convert to fraction form
    70,612,318.80/105,918,322.41 = 18,796,933.08/x
  3. Step 3: Cross multiply
    70,612,318.80x = 105,918,322.41 × 18,796,933.08
  4. Step 4: Simplify right side
    70,612,318.80x = 1,990,939,618,286,634
  5. Step 5: Solve for x
    x = 1,990,939,618,286,634/70,612,318.80
  6. Step 6: Final answer
    x = 28,195,358.15

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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.