Home / 142,113,200.30-212,834,005.89-69,379,791.02

Finding the Fourth Proportional to 142,113,200.30, 212,834,005.89 and 69,379,791.02

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Solution

The fourth proportional to 142,113,200.30, 212,834,005.89 and 69,379,791.02 is: 103,905,751.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,113,200.30 : 212,834,005.89 = 69,379,791.02 : x
  2. Step 2: Convert to fraction form
    142,113,200.30/212,834,005.89 = 69,379,791.02/x
  3. Step 3: Cross multiply
    142,113,200.30x = 212,834,005.89 × 69,379,791.02
  4. Step 4: Simplify right side
    142,113,200.30x = 14,766,378,850,597,648
  5. Step 5: Solve for x
    x = 14,766,378,850,597,648/142,113,200.30
  6. Step 6: Final answer
    x = 103,905,751.33

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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.