Home / 228,107,818.82-314,794,979.66-129,003,386.20

Finding the Fourth Proportional to 228,107,818.82, 314,794,979.66 and 129,003,386.20

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Solution

The fourth proportional to 228,107,818.82, 314,794,979.66 and 129,003,386.20 is: 178,028,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,107,818.82 : 314,794,979.66 = 129,003,386.20 : x
  2. Step 2: Convert to fraction form
    228,107,818.82/314,794,979.66 = 129,003,386.20/x
  3. Step 3: Cross multiply
    228,107,818.82x = 314,794,979.66 × 129,003,386.20
  4. Step 4: Simplify right side
    228,107,818.82x = 40,609,618,334,900,128
  5. Step 5: Solve for x
    x = 40,609,618,334,900,128/228,107,818.82
  6. Step 6: Final answer
    x = 178,028,173.45

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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.