Home / 766,626,906.32-1,058,817,805.92-515,294,953.42

Finding the Fourth Proportional to 766,626,906.32, 1,058,817,805.92 and 515,294,953.42

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Solution

The fourth proportional to 766,626,906.32, 1,058,817,805.92 and 515,294,953.42 is: 711,693,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,626,906.32 : 1,058,817,805.92 = 515,294,953.42 : x
  2. Step 2: Convert to fraction form
    766,626,906.32/1,058,817,805.92 = 515,294,953.42/x
  3. Step 3: Cross multiply
    766,626,906.32x = 1,058,817,805.92 × 515,294,953.42
  4. Step 4: Simplify right side
    766,626,906.32x = 545,603,471,981,812,992
  5. Step 5: Solve for x
    x = 545,603,471,981,812,992/766,626,906.32
  6. Step 6: Final answer
    x = 711,693,611.96

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Double scale
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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.