Home / 103,136,843.64-142,331,536.35-56,728,315.38

Finding the Fourth Proportional to 103,136,843.64, 142,331,536.35 and 56,728,315.38

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Solution

The fourth proportional to 103,136,843.64, 142,331,536.35 and 56,728,315.38 is: 78,286,555.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,136,843.64 : 142,331,536.35 = 56,728,315.38 : x
  2. Step 2: Convert to fraction form
    103,136,843.64/142,331,536.35 = 56,728,315.38/x
  3. Step 3: Cross multiply
    103,136,843.64x = 142,331,536.35 × 56,728,315.38
  4. Step 4: Simplify right side
    103,136,843.64x = 8,074,228,282,582,734
  5. Step 5: Solve for x
    x = 8,074,228,282,582,734/103,136,843.64
  6. Step 6: Final answer
    x = 78,286,555.97

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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.