Home / 786,540,577.95-1,085,428,188.95-429,311,580.21

Finding the Fourth Proportional to 786,540,577.95, 1,085,428,188.95 and 429,311,580.21

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Solution

The fourth proportional to 786,540,577.95, 1,085,428,188.95 and 429,311,580.21 is: 592,451,176.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,540,577.95 : 1,085,428,188.95 = 429,311,580.21 : x
  2. Step 2: Convert to fraction form
    786,540,577.95/1,085,428,188.95 = 429,311,580.21/x
  3. Step 3: Cross multiply
    786,540,577.95x = 1,085,428,188.95 × 429,311,580.21
  4. Step 4: Simplify right side
    786,540,577.95x = 465,986,891,000,456,320
  5. Step 5: Solve for x
    x = 465,986,891,000,456,320/786,540,577.95
  6. Step 6: Final answer
    x = 592,451,176.79

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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.