Home / 141,479,136.19-195,239,830.03-78,754,239.55

Finding the Fourth Proportional to 141,479,136.19, 195,239,830.03 and 78,754,239.55

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Solution

The fourth proportional to 141,479,136.19, 195,239,830.03 and 78,754,239.55 is: 108,680,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,479,136.19 : 195,239,830.03 = 78,754,239.55 : x
  2. Step 2: Convert to fraction form
    141,479,136.19/195,239,830.03 = 78,754,239.55/x
  3. Step 3: Cross multiply
    141,479,136.19x = 195,239,830.03 × 78,754,239.55
  4. Step 4: Simplify right side
    141,479,136.19x = 15,375,964,343,883,904
  5. Step 5: Solve for x
    x = 15,375,964,343,883,904/141,479,136.19
  6. Step 6: Final answer
    x = 108,680,083.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.