Home / 128,332,636.20-177,110,231.94-70,397,081.64

Finding the Fourth Proportional to 128,332,636.20, 177,110,231.94 and 70,397,081.64

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Solution

The fourth proportional to 128,332,636.20, 177,110,231.94 and 70,397,081.64 is: 97,154,113.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,332,636.20 : 177,110,231.94 = 70,397,081.64 : x
  2. Step 2: Convert to fraction form
    128,332,636.20/177,110,231.94 = 70,397,081.64/x
  3. Step 3: Cross multiply
    128,332,636.20x = 177,110,231.94 × 70,397,081.64
  4. Step 4: Simplify right side
    128,332,636.20x = 12,468,043,457,159,516
  5. Step 5: Solve for x
    x = 12,468,043,457,159,516/128,332,636.20
  6. Step 6: Final answer
    x = 97,154,113.14

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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.