Home / 81,611,693.40-122,258,107.80-49,167,220.35

Finding the Fourth Proportional to 81,611,693.40, 122,258,107.80 and 49,167,220.35

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Solution

The fourth proportional to 81,611,693.40, 122,258,107.80 and 49,167,220.35 is: 73,654,780.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,611,693.40 : 122,258,107.80 = 49,167,220.35 : x
  2. Step 2: Convert to fraction form
    81,611,693.40/122,258,107.80 = 49,167,220.35/x
  3. Step 3: Cross multiply
    81,611,693.40x = 122,258,107.80 × 49,167,220.35
  4. Step 4: Simplify right side
    81,611,693.40x = 6,011,091,325,776,654
  5. Step 5: Solve for x
    x = 6,011,091,325,776,654/81,611,693.40
  6. Step 6: Final answer
    x = 73,654,780.04

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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.