Home / 117,100,440-161,599,556.64-64,890,347.52

Finding the Fourth Proportional to 117,100,440, 161,599,556.64 and 64,890,347.52

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Solution

The fourth proportional to 117,100,440, 161,599,556.64 and 64,890,347.52 is: 89,549,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,100,440 : 161,599,556.64 = 64,890,347.52 : x
  2. Step 2: Convert to fraction form
    117,100,440/161,599,556.64 = 64,890,347.52/x
  3. Step 3: Cross multiply
    117,100,440x = 161,599,556.64 × 64,890,347.52
  4. Step 4: Simplify right side
    117,100,440x = 10,486,251,389,447,524
  5. Step 5: Solve for x
    x = 10,486,251,389,447,524/117,100,440
  6. Step 6: Final answer
    x = 89,549,205.70

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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.