Home / 28,366,856,541.80-42,550,284,812.70-12,887,515,485.80

Finding the Fourth Proportional to 28,366,856,541.80, 42,550,284,812.70 and 12,887,515,485.80

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Solution

The fourth proportional to 28,366,856,541.80, 42,550,284,812.70 and 12,887,515,485.80 is: 19,331,273,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366,856,541.80 : 42,550,284,812.70 = 12,887,515,485.80 : x
  2. Step 2: Convert to fraction form
    28,366,856,541.80/42,550,284,812.70 = 12,887,515,485.80/x
  3. Step 3: Cross multiply
    28,366,856,541.80x = 42,550,284,812.70 × 12,887,515,485.80
  4. Step 4: Simplify right side
    28,366,856,541.80x = 548,367,454,448,871,735,296
  5. Step 5: Solve for x
    x = 548,367,454,448,871,735,296/28,366,856,541.80
  6. Step 6: Final answer
    x = 19,331,273,228.70

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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.