Home / 129,382,651.40-194,017,989.90-52,680,187.40

Finding the Fourth Proportional to 129,382,651.40, 194,017,989.90 and 52,680,187.40

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Solution

The fourth proportional to 129,382,651.40, 194,017,989.90 and 52,680,187.40 is: 78,997,485.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,382,651.40 : 194,017,989.90 = 52,680,187.40 : x
  2. Step 2: Convert to fraction form
    129,382,651.40/194,017,989.90 = 52,680,187.40/x
  3. Step 3: Cross multiply
    129,382,651.40x = 194,017,989.90 × 52,680,187.40
  4. Step 4: Simplify right side
    129,382,651.40x = 10,220,904,066,903,308
  5. Step 5: Solve for x
    x = 10,220,904,066,903,308/129,382,651.40
  6. Step 6: Final answer
    x = 78,997,485.03

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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.