Home / 129,990,225.45-194,983,369.89-31,622,858.31

Finding the Fourth Proportional to 129,990,225.45, 194,983,369.89 and 31,622,858.31

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Solution

The fourth proportional to 129,990,225.45, 194,983,369.89 and 31,622,858.31 is: 47,433,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,990,225.45 : 194,983,369.89 = 31,622,858.31 : x
  2. Step 2: Convert to fraction form
    129,990,225.45/194,983,369.89 = 31,622,858.31/x
  3. Step 3: Cross multiply
    129,990,225.45x = 194,983,369.89 × 31,622,858.31
  4. Step 4: Simplify right side
    129,990,225.45x = 6,165,931,478,837,790
  5. Step 5: Solve for x
    x = 6,165,931,478,837,790/129,990,225.45
  6. Step 6: Final answer
    x = 47,433,808.64

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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.