Home / 266,643,860.51-399,925,378.55-72,570,399.05

Finding the Fourth Proportional to 266,643,860.51, 399,925,378.55 and 72,570,399.05

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Solution

The fourth proportional to 266,643,860.51, 399,925,378.55 and 72,570,399.05 is: 108,844,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,643,860.51 : 399,925,378.55 = 72,570,399.05 : x
  2. Step 2: Convert to fraction form
    266,643,860.51/399,925,378.55 = 72,570,399.05/x
  3. Step 3: Cross multiply
    266,643,860.51x = 399,925,378.55 × 72,570,399.05
  4. Step 4: Simplify right side
    266,643,860.51x = 29,022,744,312,777,048
  5. Step 5: Solve for x
    x = 29,022,744,312,777,048/266,643,860.51
  6. Step 6: Final answer
    x = 108,844,599.90

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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.