Home / 177,827,420.40-266,890,429.80-80,932,239.60

Finding the Fourth Proportional to 177,827,420.40, 266,890,429.80 and 80,932,239.60

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Solution

The fourth proportional to 177,827,420.40, 266,890,429.80 and 80,932,239.60 is: 121,466,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,827,420.40 : 266,890,429.80 = 80,932,239.60 : x
  2. Step 2: Convert to fraction form
    177,827,420.40/266,890,429.80 = 80,932,239.60/x
  3. Step 3: Cross multiply
    177,827,420.40x = 266,890,429.80 × 80,932,239.60
  4. Step 4: Simplify right side
    177,827,420.40x = 21,600,040,211,520,580
  5. Step 5: Solve for x
    x = 21,600,040,211,520,580/177,827,420.40
  6. Step 6: Final answer
    x = 121,466,307.97

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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.