Home / 689,608,883.52-951,680,435.04-376,363,188.72

Finding the Fourth Proportional to 689,608,883.52, 951,680,435.04 and 376,363,188.72

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Solution

The fourth proportional to 689,608,883.52, 951,680,435.04 and 376,363,188.72 is: 519,392,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,608,883.52 : 951,680,435.04 = 376,363,188.72 : x
  2. Step 2: Convert to fraction form
    689,608,883.52/951,680,435.04 = 376,363,188.72/x
  3. Step 3: Cross multiply
    689,608,883.52x = 951,680,435.04 × 376,363,188.72
  4. Step 4: Simplify right side
    689,608,883.52x = 358,177,483,174,091,264
  5. Step 5: Solve for x
    x = 358,177,483,174,091,264/689,608,883.52
  6. Step 6: Final answer
    x = 519,392,211.63

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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.