Home / 128,953,282.14-177,954,771.38-70,215,806.63

Finding the Fourth Proportional to 128,953,282.14, 177,954,771.38 and 70,215,806.63

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Solution

The fourth proportional to 128,953,282.14, 177,954,771.38 and 70,215,806.63 is: 96,897,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,953,282.14 : 177,954,771.38 = 70,215,806.63 : x
  2. Step 2: Convert to fraction form
    128,953,282.14/177,954,771.38 = 70,215,806.63/x
  3. Step 3: Cross multiply
    128,953,282.14x = 177,954,771.38 × 70,215,806.63
  4. Step 4: Simplify right side
    128,953,282.14x = 12,495,237,814,863,086
  5. Step 5: Solve for x
    x = 12,495,237,814,863,086/128,953,282.14
  6. Step 6: Final answer
    x = 96,897,400.42

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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.