Home / 769,397,923.32-1,062,290,341.20-487,390,620.48

Finding the Fourth Proportional to 769,397,923.32, 1,062,290,341.20 and 487,390,620.48

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Solution

The fourth proportional to 769,397,923.32, 1,062,290,341.20 and 487,390,620.48 is: 672,929,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,397,923.32 : 1,062,290,341.20 = 487,390,620.48 : x
  2. Step 2: Convert to fraction form
    769,397,923.32/1,062,290,341.20 = 487,390,620.48/x
  3. Step 3: Cross multiply
    769,397,923.32x = 1,062,290,341.20 × 487,390,620.48
  4. Step 4: Simplify right side
    769,397,923.32x = 517,750,348,527,378,944
  5. Step 5: Solve for x
    x = 517,750,348,527,378,944/769,397,923.32
  6. Step 6: Final answer
    x = 672,929,225.35

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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.