Home / 783,957,560.27-1,081,887,983.91-426,738,367.58

Finding the Fourth Proportional to 783,957,560.27, 1,081,887,983.91 and 426,738,367.58

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Solution

The fourth proportional to 783,957,560.27, 1,081,887,983.91 and 426,738,367.58 is: 588,913,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,957,560.27 : 1,081,887,983.91 = 426,738,367.58 : x
  2. Step 2: Convert to fraction form
    783,957,560.27/1,081,887,983.91 = 426,738,367.58/x
  3. Step 3: Cross multiply
    783,957,560.27x = 1,081,887,983.91 × 426,738,367.58
  4. Step 4: Simplify right side
    783,957,560.27x = 461,683,112,152,761,280
  5. Step 5: Solve for x
    x = 461,683,112,152,761,280/783,957,560.27
  6. Step 6: Final answer
    x = 588,913,399.85

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1.5x scale

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.