Home / 689,531,825.52-1,034,106,370.92-191,427,911.28

Finding the Fourth Proportional to 689,531,825.52, 1,034,106,370.92 and 191,427,911.28

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Solution

The fourth proportional to 689,531,825.52, 1,034,106,370.92 and 191,427,911.28 is: 287,088,739.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,531,825.52 : 1,034,106,370.92 = 191,427,911.28 : x
  2. Step 2: Convert to fraction form
    689,531,825.52/1,034,106,370.92 = 191,427,911.28/x
  3. Step 3: Cross multiply
    689,531,825.52x = 1,034,106,370.92 × 191,427,911.28
  4. Step 4: Simplify right side
    689,531,825.52x = 197,956,822,626,556,512
  5. Step 5: Solve for x
    x = 197,956,822,626,556,512/689,531,825.52
  6. Step 6: Final answer
    x = 287,088,739.49

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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.