Home / 103,136,857.34-142,331,555.78-56,728,329.15

Finding the Fourth Proportional to 103,136,857.34, 142,331,555.78 and 56,728,329.15

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Solution

The fourth proportional to 103,136,857.34, 142,331,555.78 and 56,728,329.15 is: 78,286,575.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,136,857.34 : 142,331,555.78 = 56,728,329.15 : x
  2. Step 2: Convert to fraction form
    103,136,857.34/142,331,555.78 = 56,728,329.15/x
  3. Step 3: Cross multiply
    103,136,857.34x = 142,331,555.78 × 56,728,329.15
  4. Step 4: Simplify right side
    103,136,857.34x = 8,074,231,344,719,425
  5. Step 5: Solve for x
    x = 8,074,231,344,719,425/103,136,857.34
  6. Step 6: Final answer
    x = 78,286,575.26

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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.