Home / 218,681,873.64-301,787,284.17-120,903,028.20

Finding the Fourth Proportional to 218,681,873.64, 301,787,284.17 and 120,903,028.20

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Solution

The fourth proportional to 218,681,873.64, 301,787,284.17 and 120,903,028.20 is: 166,849,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,681,873.64 : 301,787,284.17 = 120,903,028.20 : x
  2. Step 2: Convert to fraction form
    218,681,873.64/301,787,284.17 = 120,903,028.20/x
  3. Step 3: Cross multiply
    218,681,873.64x = 301,787,284.17 × 120,903,028.20
  4. Step 4: Simplify right side
    218,681,873.64x = 36,486,996,528,406,928
  5. Step 5: Solve for x
    x = 36,486,996,528,406,928/218,681,873.64
  6. Step 6: Final answer
    x = 166,849,661.20

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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.