Home / 856,285,449.62-1,181,706,403.47-479,948,993.06

Finding the Fourth Proportional to 856,285,449.62, 1,181,706,403.47 and 479,948,993.06

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Solution

The fourth proportional to 856,285,449.62, 1,181,706,403.47 and 479,948,993.06 is: 662,347,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,285,449.62 : 1,181,706,403.47 = 479,948,993.06 : x
  2. Step 2: Convert to fraction form
    856,285,449.62/1,181,706,403.47 = 479,948,993.06/x
  3. Step 3: Cross multiply
    856,285,449.62x = 1,181,706,403.47 × 479,948,993.06
  4. Step 4: Simplify right side
    856,285,449.62x = 567,158,798,437,980,608
  5. Step 5: Solve for x
    x = 567,158,798,437,980,608/856,285,449.62
  6. Step 6: Final answer
    x = 662,347,817.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.