Home / 12,899,570,799.12-17,800,272,296.72-7,183,423,289.60

Finding the Fourth Proportional to 12,899,570,799.12, 17,800,272,296.72 and 7,183,423,289.60

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Solution

The fourth proportional to 12,899,570,799.12, 17,800,272,296.72 and 7,183,423,289.60 is: 9,912,491,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899,570,799.12 : 17,800,272,296.72 = 7,183,423,289.60 : x
  2. Step 2: Convert to fraction form
    12,899,570,799.12/17,800,272,296.72 = 7,183,423,289.60/x
  3. Step 3: Cross multiply
    12,899,570,799.12x = 17,800,272,296.72 × 7,183,423,289.60
  4. Step 4: Simplify right side
    12,899,570,799.12x = 127,866,890,577,480,138,752
  5. Step 5: Solve for x
    x = 127,866,890,577,480,138,752/12,899,570,799.12
  6. Step 6: Final answer
    x = 9,912,491,862.61

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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.