Home / 28,366,856,535.80-42,550,284,803.70-12,887,515,479.80

Finding the Fourth Proportional to 28,366,856,535.80, 42,550,284,803.70 and 12,887,515,479.80

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Solution

The fourth proportional to 28,366,856,535.80, 42,550,284,803.70 and 12,887,515,479.80 is: 19,331,273,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366,856,535.80 : 42,550,284,803.70 = 12,887,515,479.80 : x
  2. Step 2: Convert to fraction form
    28,366,856,535.80/42,550,284,803.70 = 12,887,515,479.80/x
  3. Step 3: Cross multiply
    28,366,856,535.80x = 42,550,284,803.70 × 12,887,515,479.80
  4. Step 4: Simplify right side
    28,366,856,535.80x = 548,367,454,077,582,376,960
  5. Step 5: Solve for x
    x = 548,367,454,077,582,376,960/28,366,856,535.80
  6. Step 6: Final answer
    x = 19,331,273,219.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.