Home / 118,236,505.28-163,163,216.01-65,312,073.86

Finding the Fourth Proportional to 118,236,505.28, 163,163,216.01 and 65,312,073.86

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Solution

The fourth proportional to 118,236,505.28, 163,163,216.01 and 65,312,073.86 is: 90,128,915.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,236,505.28 : 163,163,216.01 = 65,312,073.86 : x
  2. Step 2: Convert to fraction form
    118,236,505.28/163,163,216.01 = 65,312,073.86/x
  3. Step 3: Cross multiply
    118,236,505.28x = 163,163,216.01 × 65,312,073.86
  4. Step 4: Simplify right side
    118,236,505.28x = 10,656,528,014,464,438
  5. Step 5: Solve for x
    x = 10,656,528,014,464,438/118,236,505.28
  6. Step 6: Final answer
    x = 90,128,915.68

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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.