Home / 128,889,552.28-177,868,321.86-70,152,077.20

Finding the Fourth Proportional to 128,889,552.28, 177,868,321.86 and 70,152,077.20

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Solution

The fourth proportional to 128,889,552.28, 177,868,321.86 and 70,152,077.20 is: 96,810,269.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,889,552.28 : 177,868,321.86 = 70,152,077.20 : x
  2. Step 2: Convert to fraction form
    128,889,552.28/177,868,321.86 = 70,152,077.20/x
  3. Step 3: Cross multiply
    128,889,552.28x = 177,868,321.86 × 70,152,077.20
  4. Step 4: Simplify right side
    128,889,552.28x = 12,477,832,246,557,170
  5. Step 5: Solve for x
    x = 12,477,832,246,557,170/128,889,552.28
  6. Step 6: Final answer
    x = 96,810,269.15

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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.