Home / 129,257,618.48-178,369,284.84-70,516,788.80

Finding the Fourth Proportional to 129,257,618.48, 178,369,284.84 and 70,516,788.80

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Solution

The fourth proportional to 129,257,618.48, 178,369,284.84 and 70,516,788.80 is: 97,309,770.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,257,618.48 : 178,369,284.84 = 70,516,788.80 : x
  2. Step 2: Convert to fraction form
    129,257,618.48/178,369,284.84 = 70,516,788.80/x
  3. Step 3: Cross multiply
    129,257,618.48x = 178,369,284.84 × 70,516,788.80
  4. Step 4: Simplify right side
    129,257,618.48x = 12,578,029,187,469,322
  5. Step 5: Solve for x
    x = 12,578,029,187,469,322/129,257,618.48
  6. Step 6: Final answer
    x = 97,309,770.48

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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.