Home / 786,540,575.70-1,085,428,185.84-429,311,577.96

Finding the Fourth Proportional to 786,540,575.70, 1,085,428,185.84 and 429,311,577.96

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Solution

The fourth proportional to 786,540,575.70, 1,085,428,185.84 and 429,311,577.96 is: 592,451,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,540,575.70 : 1,085,428,185.84 = 429,311,577.96 : x
  2. Step 2: Convert to fraction form
    786,540,575.70/1,085,428,185.84 = 429,311,577.96/x
  3. Step 3: Cross multiply
    786,540,575.70x = 1,085,428,185.84 × 429,311,577.96
  4. Step 4: Simplify right side
    786,540,575.70x = 465,986,887,225,230,464
  5. Step 5: Solve for x
    x = 465,986,887,225,230,464/786,540,575.70
  6. Step 6: Final answer
    x = 592,451,173.69

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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.