Home / 689,531,837.52-1,034,106,388.92-191,427,923.28

Finding the Fourth Proportional to 689,531,837.52, 1,034,106,388.92 and 191,427,923.28

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Solution

The fourth proportional to 689,531,837.52, 1,034,106,388.92 and 191,427,923.28 is: 287,088,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,531,837.52 : 1,034,106,388.92 = 191,427,923.28 : x
  2. Step 2: Convert to fraction form
    689,531,837.52/1,034,106,388.92 = 191,427,923.28/x
  3. Step 3: Cross multiply
    689,531,837.52x = 1,034,106,388.92 × 191,427,923.28
  4. Step 4: Simplify right side
    689,531,837.52x = 197,956,838,481,535,584
  5. Step 5: Solve for x
    x = 197,956,838,481,535,584/689,531,837.52
  6. Step 6: Final answer
    x = 287,088,757.49

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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.