Home / 228,080,268.76-314,757,410.78-128,958,888

Finding the Fourth Proportional to 228,080,268.76, 314,757,410.78 and 128,958,888

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Solution

The fourth proportional to 228,080,268.76, 314,757,410.78 and 128,958,888 is: 177,967,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,080,268.76 : 314,757,410.78 = 128,958,888 : x
  2. Step 2: Convert to fraction form
    228,080,268.76/314,757,410.78 = 128,958,888/x
  3. Step 3: Cross multiply
    228,080,268.76x = 314,757,410.78 × 128,958,888
  4. Step 4: Simplify right side
    228,080,268.76x = 40,590,765,683,948,008
  5. Step 5: Solve for x
    x = 40,590,765,683,948,008/228,080,268.76
  6. Step 6: Final answer
    x = 177,967,019.70

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1.5x scale

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.