Home / 228,055,367.88-314,704,286.72-128,930,188.76

Finding the Fourth Proportional to 228,055,367.88, 314,704,286.72 and 128,930,188.76

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Solution

The fourth proportional to 228,055,367.88, 314,704,286.72 and 128,930,188.76 is: 177,916,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,055,367.88 : 314,704,286.72 = 128,930,188.76 : x
  2. Step 2: Convert to fraction form
    228,055,367.88/314,704,286.72 = 128,930,188.76/x
  3. Step 3: Cross multiply
    228,055,367.88x = 314,704,286.72 × 128,930,188.76
  4. Step 4: Simplify right side
    228,055,367.88x = 40,574,883,090,390,768
  5. Step 5: Solve for x
    x = 40,574,883,090,390,768/228,055,367.88
  6. Step 6: Final answer
    x = 177,916,807.96

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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.