Home / 128,858,336.41-177,824,533.25-70,911,584.41

Finding the Fourth Proportional to 128,858,336.41, 177,824,533.25 and 70,911,584.41

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Solution

The fourth proportional to 128,858,336.41, 177,824,533.25 and 70,911,584.41 is: 97,858,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,858,336.41 : 177,824,533.25 = 70,911,584.41 : x
  2. Step 2: Convert to fraction form
    128,858,336.41/177,824,533.25 = 70,911,584.41/x
  3. Step 3: Cross multiply
    128,858,336.41x = 177,824,533.25 × 70,911,584.41
  4. Step 4: Simplify right side
    128,858,336.41x = 12,609,819,399,371,668
  5. Step 5: Solve for x
    x = 12,609,819,399,371,668/128,858,336.41
  6. Step 6: Final answer
    x = 97,858,002.44

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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.