Home / 911,169,089.88-1,367,251,200-386,456,575.20

Finding the Fourth Proportional to 911,169,089.88, 1,367,251,200 and 386,456,575.20

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Solution

The fourth proportional to 911,169,089.88, 1,367,251,200 and 386,456,575.20 is: 579,895,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,169,089.88 : 1,367,251,200 = 386,456,575.20 : x
  2. Step 2: Convert to fraction form
    911,169,089.88/1,367,251,200 = 386,456,575.20/x
  3. Step 3: Cross multiply
    911,169,089.88x = 1,367,251,200 × 386,456,575.20
  4. Step 4: Simplify right side
    911,169,089.88x = 528,383,216,190,090,240
  5. Step 5: Solve for x
    x = 528,383,216,190,090,240/911,169,089.88
  6. Step 6: Final answer
    x = 579,895,896.45

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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.