Home / 128,933,929.13-278,286,311.25

Finding the Third Proportional to 128,933,929.13 and 278,286,311.25

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Solution

The third proportional to 128,933,929.13 and 278,286,311.25 is: 600,643,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,933,929.13 : 278,286,311.25 = 278,286,311.25 : x
  2. Step 2: Convert to fraction form
    128,933,929.13/278,286,311.25 = 278,286,311.25/x
  3. Step 3: Cross multiply
    128,933,929.13x = 278,286,311.25 × 278,286,311.25
  4. Step 4: Simplify right side
    128,933,929.13x = 77,443,271,029,131,872
  5. Step 5: Solve for x
    x = 77,443,271,029,131,872/128,933,929.13
  6. Step 6: Final answer
    x = 600,643,070.10

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.