Home / 745,891,126.97-1,118,511,879.32-213,985,188.52

Finding the Fourth Proportional to 745,891,126.97, 1,118,511,879.32 and 213,985,188.52

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Solution

The fourth proportional to 745,891,126.97, 1,118,511,879.32 and 213,985,188.52 is: 320,884,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,891,126.97 : 1,118,511,879.32 = 213,985,188.52 : x
  2. Step 2: Convert to fraction form
    745,891,126.97/1,118,511,879.32 = 213,985,188.52/x
  3. Step 3: Cross multiply
    745,891,126.97x = 1,118,511,879.32 × 213,985,188.52
  4. Step 4: Simplify right side
    745,891,126.97x = 239,344,975,355,888,384
  5. Step 5: Solve for x
    x = 239,344,975,355,888,384/745,891,126.97
  6. Step 6: Final answer
    x = 320,884,599.24

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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.