Home / 128,216,532,214.80-192,324,798,322.20-107,645,939,139.60

Finding the Fourth Proportional to 128,216,532,214.80, 192,324,798,322.20 and 107,645,939,139.60

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Solution

The fourth proportional to 128,216,532,214.80, 192,324,798,322.20 and 107,645,939,139.60 is: 161,468,908,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,216,532,214.80 : 192,324,798,322.20 = 107,645,939,139.60 : x
  2. Step 2: Convert to fraction form
    128,216,532,214.80/192,324,798,322.20 = 107,645,939,139.60/x
  3. Step 3: Cross multiply
    128,216,532,214.80x = 192,324,798,322.20 × 107,645,939,139.60
  4. Step 4: Simplify right side
    128,216,532,214.80x = 20,702,983,535,227,387,772,928
  5. Step 5: Solve for x
    x = 20,702,983,535,227,387,772,928/128,216,532,214.80
  6. Step 6: Final answer
    x = 161,468,908,709.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.