Home / 81,666,912.40-122,500,368.60-63,172,765.60

Finding the Fourth Proportional to 81,666,912.40, 122,500,368.60 and 63,172,765.60

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Solution

The fourth proportional to 81,666,912.40, 122,500,368.60 and 63,172,765.60 is: 94,759,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,666,912.40 : 122,500,368.60 = 63,172,765.60 : x
  2. Step 2: Convert to fraction form
    81,666,912.40/122,500,368.60 = 63,172,765.60/x
  3. Step 3: Cross multiply
    81,666,912.40x = 122,500,368.60 × 63,172,765.60
  4. Step 4: Simplify right side
    81,666,912.40x = 7,738,687,071,481,400
  5. Step 5: Solve for x
    x = 7,738,687,071,481,400/81,666,912.40
  6. Step 6: Final answer
    x = 94,759,148.40

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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.