Home / 656,976,703.56-906,628,134.78-359,620,641.72

Finding the Fourth Proportional to 656,976,703.56, 906,628,134.78 and 359,620,641.72

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Solution

The fourth proportional to 656,976,703.56, 906,628,134.78 and 359,620,641.72 is: 496,276,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,976,703.56 : 906,628,134.78 = 359,620,641.72 : x
  2. Step 2: Convert to fraction form
    656,976,703.56/906,628,134.78 = 359,620,641.72/x
  3. Step 3: Cross multiply
    656,976,703.56x = 906,628,134.78 × 359,620,641.72
  4. Step 4: Simplify right side
    656,976,703.56x = 326,042,191,630,990,272
  5. Step 5: Solve for x
    x = 326,042,191,630,990,272/656,976,703.56
  6. Step 6: Final answer
    x = 496,276,640.96

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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.