Home / 90,410,423.64-124,765,507.50-49,157,315.64

Finding the Fourth Proportional to 90,410,423.64, 124,765,507.50 and 49,157,315.64

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Solution

The fourth proportional to 90,410,423.64, 124,765,507.50 and 49,157,315.64 is: 67,836,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410,423.64 : 124,765,507.50 = 49,157,315.64 : x
  2. Step 2: Convert to fraction form
    90,410,423.64/124,765,507.50 = 49,157,315.64/x
  3. Step 3: Cross multiply
    90,410,423.64x = 124,765,507.50 × 49,157,315.64
  4. Step 4: Simplify right side
    90,410,423.64x = 6,133,137,433,162,287
  5. Step 5: Solve for x
    x = 6,133,137,433,162,287/90,410,423.64
  6. Step 6: Final answer
    x = 67,836,618.68

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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.