Home / 778,738,988.27-1,074,659,856.23-426,314,978.98

Finding the Fourth Proportional to 778,738,988.27, 1,074,659,856.23 and 426,314,978.98

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Solution

The fourth proportional to 778,738,988.27, 1,074,659,856.23 and 426,314,978.98 is: 588,314,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,738,988.27 : 1,074,659,856.23 = 426,314,978.98 : x
  2. Step 2: Convert to fraction form
    778,738,988.27/1,074,659,856.23 = 426,314,978.98/x
  3. Step 3: Cross multiply
    778,738,988.27x = 1,074,659,856.23 × 426,314,978.98
  4. Step 4: Simplify right side
    778,738,988.27x = 458,143,594,019,342,272
  5. Step 5: Solve for x
    x = 458,143,594,019,342,272/778,738,988.27
  6. Step 6: Final answer
    x = 588,314,699.69

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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.