Home / 554,447,019.98-765,142,934.20-306,932,507.66

Finding the Fourth Proportional to 554,447,019.98, 765,142,934.20 and 306,932,507.66

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Solution

The fourth proportional to 554,447,019.98, 765,142,934.20 and 306,932,507.66 is: 423,570,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,447,019.98 : 765,142,934.20 = 306,932,507.66 : x
  2. Step 2: Convert to fraction form
    554,447,019.98/765,142,934.20 = 306,932,507.66/x
  3. Step 3: Cross multiply
    554,447,019.98x = 765,142,934.20 × 306,932,507.66
  4. Step 4: Simplify right side
    554,447,019.98x = 234,847,239,512,336,416
  5. Step 5: Solve for x
    x = 234,847,239,512,336,416/554,447,019.98
  6. Step 6: Final answer
    x = 423,570,207.88

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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.