Home / 118,310,685.21-163,265,731.92-66,100,113.45

Finding the Fourth Proportional to 118,310,685.21, 163,265,731.92 and 66,100,113.45

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Solution

The fourth proportional to 118,310,685.21, 163,265,731.92 and 66,100,113.45 is: 91,216,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,310,685.21 : 163,265,731.92 = 66,100,113.45 : x
  2. Step 2: Convert to fraction form
    118,310,685.21/163,265,731.92 = 66,100,113.45/x
  3. Step 3: Cross multiply
    118,310,685.21x = 163,265,731.92 × 66,100,113.45
  4. Step 4: Simplify right side
    118,310,685.21x = 10,791,883,402,409,286
  5. Step 5: Solve for x
    x = 10,791,883,402,409,286/118,310,685.21
  6. Step 6: Final answer
    x = 91,216,472.83

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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.