Home / 689,768,403.08-951,738,300.06-396,356,284.04

Finding the Fourth Proportional to 689,768,403.08, 951,738,300.06 and 396,356,284.04

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Solution

The fourth proportional to 689,768,403.08, 951,738,300.06 and 396,356,284.04 is: 546,890,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,768,403.08 : 951,738,300.06 = 396,356,284.04 : x
  2. Step 2: Convert to fraction form
    689,768,403.08/951,738,300.06 = 396,356,284.04/x
  3. Step 3: Cross multiply
    689,768,403.08x = 951,738,300.06 × 396,356,284.04
  4. Step 4: Simplify right side
    689,768,403.08x = 377,227,455,990,328,128
  5. Step 5: Solve for x
    x = 377,227,455,990,328,128/689,768,403.08
  6. Step 6: Final answer
    x = 546,890,020.34

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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.