Home / 140,893,125.66-211,390,030.17-85,673,307.78

Finding the Fourth Proportional to 140,893,125.66, 211,390,030.17 and 85,673,307.78

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Solution

The fourth proportional to 140,893,125.66, 211,390,030.17 and 85,673,307.78 is: 128,540,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,893,125.66 : 211,390,030.17 = 85,673,307.78 : x
  2. Step 2: Convert to fraction form
    140,893,125.66/211,390,030.17 = 85,673,307.78/x
  3. Step 3: Cross multiply
    140,893,125.66x = 211,390,030.17 × 85,673,307.78
  4. Step 4: Simplify right side
    140,893,125.66x = 18,110,483,116,377,896
  5. Step 5: Solve for x
    x = 18,110,483,116,377,896/140,893,125.66
  6. Step 6: Final answer
    x = 128,540,573.09

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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.