Home / 166,242,844.40-249,368,543.40-78,783,839.60

Finding the Fourth Proportional to 166,242,844.40, 249,368,543.40 and 78,783,839.60

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Solution

The fourth proportional to 166,242,844.40, 249,368,543.40 and 78,783,839.60 is: 118,177,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,242,844.40 : 249,368,543.40 = 78,783,839.60 : x
  2. Step 2: Convert to fraction form
    166,242,844.40/249,368,543.40 = 78,783,839.60/x
  3. Step 3: Cross multiply
    166,242,844.40x = 249,368,543.40 × 78,783,839.60
  4. Step 4: Simplify right side
    166,242,844.40x = 19,646,211,324,511,236
  5. Step 5: Solve for x
    x = 19,646,211,324,511,236/166,242,844.40
  6. Step 6: Final answer
    x = 118,177,786.21

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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.