Home / 1,188,187,777.80-1,782,281,666.70-1,081,049,272.20

Finding the Fourth Proportional to 1,188,187,777.80, 1,782,281,666.70 and 1,081,049,272.20

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Solution

The fourth proportional to 1,188,187,777.80, 1,782,281,666.70 and 1,081,049,272.20 is: 1,621,573,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,187,777.80 : 1,782,281,666.70 = 1,081,049,272.20 : x
  2. Step 2: Convert to fraction form
    1,188,187,777.80/1,782,281,666.70 = 1,081,049,272.20/x
  3. Step 3: Cross multiply
    1,188,187,777.80x = 1,782,281,666.70 × 1,081,049,272.20
  4. Step 4: Simplify right side
    1,188,187,777.80x = 1,926,734,298,641,438,208
  5. Step 5: Solve for x
    x = 1,926,734,298,641,438,208/1,188,187,777.80
  6. Step 6: Final answer
    x = 1,621,573,908.30

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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.