Home / 129,231,516-193,848,962.04-42,969,922.86

Finding the Fourth Proportional to 129,231,516, 193,848,962.04 and 42,969,922.86

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Solution

The fourth proportional to 129,231,516, 193,848,962.04 and 42,969,922.86 is: 64,455,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,231,516 : 193,848,962.04 = 42,969,922.86 : x
  2. Step 2: Convert to fraction form
    129,231,516/193,848,962.04 = 42,969,922.86/x
  3. Step 3: Cross multiply
    129,231,516x = 193,848,962.04 × 42,969,922.86
  4. Step 4: Simplify right side
    129,231,516x = 8,329,674,945,349,868
  5. Step 5: Solve for x
    x = 8,329,674,945,349,868/129,231,516
  6. Step 6: Final answer
    x = 64,455,445.57

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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.