Home / 917,195,346.88-1,265,720,770.56-499,514,608.96

Finding the Fourth Proportional to 917,195,346.88, 1,265,720,770.56 and 499,514,608.96

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Solution

The fourth proportional to 917,195,346.88, 1,265,720,770.56 and 499,514,608.96 is: 689,325,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,195,346.88 : 1,265,720,770.56 = 499,514,608.96 : x
  2. Step 2: Convert to fraction form
    917,195,346.88/1,265,720,770.56 = 499,514,608.96/x
  3. Step 3: Cross multiply
    917,195,346.88x = 1,265,720,770.56 × 499,514,608.96
  4. Step 4: Simplify right side
    917,195,346.88x = 632,246,015,758,828,288
  5. Step 5: Solve for x
    x = 632,246,015,758,828,288/917,195,346.88
  6. Step 6: Final answer
    x = 689,325,363.36

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1.5x scale

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.