Home / 122,301,873.38-168,712,269.10-72,706,968.94

Finding the Fourth Proportional to 122,301,873.38, 168,712,269.10 and 72,706,968.94

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Solution

The fourth proportional to 122,301,873.38, 168,712,269.10 and 72,706,968.94 is: 100,297,381.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,301,873.38 : 168,712,269.10 = 72,706,968.94 : x
  2. Step 2: Convert to fraction form
    122,301,873.38/168,712,269.10 = 72,706,968.94/x
  3. Step 3: Cross multiply
    122,301,873.38x = 168,712,269.10 × 72,706,968.94
  4. Step 4: Simplify right side
    122,301,873.38x = 12,266,557,709,250,620
  5. Step 5: Solve for x
    x = 12,266,557,709,250,620/122,301,873.38
  6. Step 6: Final answer
    x = 100,297,381.96

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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.