Home / 173,867,999.90-260,801,999.85-78,316,511.90

Finding the Fourth Proportional to 173,867,999.90, 260,801,999.85 and 78,316,511.90

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Solution

The fourth proportional to 173,867,999.90, 260,801,999.85 and 78,316,511.90 is: 117,474,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,867,999.90 : 260,801,999.85 = 78,316,511.90 : x
  2. Step 2: Convert to fraction form
    173,867,999.90/260,801,999.85 = 78,316,511.90/x
  3. Step 3: Cross multiply
    173,867,999.90x = 260,801,999.85 × 78,316,511.90
  4. Step 4: Simplify right side
    173,867,999.90x = 20,425,102,924,796,324
  5. Step 5: Solve for x
    x = 20,425,102,924,796,324/173,867,999.90
  6. Step 6: Final answer
    x = 117,474,767.85

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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.