Home / 125,005,894.11-172,491,774.54-72,084,556.40

Finding the Fourth Proportional to 125,005,894.11, 172,491,774.54 and 72,084,556.40

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Solution

The fourth proportional to 125,005,894.11, 172,491,774.54 and 72,084,556.40 is: 99,467,254.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,005,894.11 : 172,491,774.54 = 72,084,556.40 : x
  2. Step 2: Convert to fraction form
    125,005,894.11/172,491,774.54 = 72,084,556.40/x
  3. Step 3: Cross multiply
    125,005,894.11x = 172,491,774.54 × 72,084,556.40
  4. Step 4: Simplify right side
    125,005,894.11x = 12,433,993,049,502,254
  5. Step 5: Solve for x
    x = 12,433,993,049,502,254/125,005,894.11
  6. Step 6: Final answer
    x = 99,467,254.23

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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.