Home / 118,236,506.28-163,163,217.39-65,312,074.86

Finding the Fourth Proportional to 118,236,506.28, 163,163,217.39 and 65,312,074.86

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Solution

The fourth proportional to 118,236,506.28, 163,163,217.39 and 65,312,074.86 is: 90,128,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,236,506.28 : 163,163,217.39 = 65,312,074.86 : x
  2. Step 2: Convert to fraction form
    118,236,506.28/163,163,217.39 = 65,312,074.86/x
  3. Step 3: Cross multiply
    118,236,506.28x = 163,163,217.39 × 65,312,074.86
  4. Step 4: Simplify right side
    118,236,506.28x = 10,656,528,268,574,132
  5. Step 5: Solve for x
    x = 10,656,528,268,574,132/118,236,506.28
  6. Step 6: Final answer
    x = 90,128,917.07

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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.