Home / 128,884,033.77-177,863,743.47-70,150,503.06

Finding the Fourth Proportional to 128,884,033.77, 177,863,743.47 and 70,150,503.06

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Solution

The fourth proportional to 128,884,033.77, 177,863,743.47 and 70,150,503.06 is: 96,809,749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,884,033.77 : 177,863,743.47 = 70,150,503.06 : x
  2. Step 2: Convert to fraction form
    128,884,033.77/177,863,743.47 = 70,150,503.06/x
  3. Step 3: Cross multiply
    128,884,033.77x = 177,863,743.47 × 70,150,503.06
  4. Step 4: Simplify right side
    128,884,033.77x = 12,477,231,080,555,290
  5. Step 5: Solve for x
    x = 12,477,231,080,555,290/128,884,033.77
  6. Step 6: Final answer
    x = 96,809,749.94

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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.