Home / 129,231,513.50-193,848,958.29-42,969,920.36

Finding the Fourth Proportional to 129,231,513.50, 193,848,958.29 and 42,969,920.36

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Solution

The fourth proportional to 129,231,513.50, 193,848,958.29 and 42,969,920.36 is: 64,455,441.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,231,513.50 : 193,848,958.29 = 42,969,920.36 : x
  2. Step 2: Convert to fraction form
    129,231,513.50/193,848,958.29 = 42,969,920.36/x
  3. Step 3: Cross multiply
    129,231,513.50x = 193,848,958.29 × 42,969,920.36
  4. Step 4: Simplify right side
    129,231,513.50x = 8,329,674,299,590,261
  5. Step 5: Solve for x
    x = 8,329,674,299,590,261/129,231,513.50
  6. Step 6: Final answer
    x = 64,455,441.82

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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.