Home / 12,138,336,142.40-18,208,008,098.40-3,856,989,454.40

Finding the Fourth Proportional to 12,138,336,142.40, 18,208,008,098.40 and 3,856,989,454.40

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Solution

The fourth proportional to 12,138,336,142.40, 18,208,008,098.40 and 3,856,989,454.40 is: 5,785,644,292.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,336,142.40 : 18,208,008,098.40 = 3,856,989,454.40 : x
  2. Step 2: Convert to fraction form
    12,138,336,142.40/18,208,008,098.40 = 3,856,989,454.40/x
  3. Step 3: Cross multiply
    12,138,336,142.40x = 18,208,008,098.40 × 3,856,989,454.40
  4. Step 4: Simplify right side
    12,138,336,142.40x = 70,228,095,221,158,608,896
  5. Step 5: Solve for x
    x = 70,228,095,221,158,608,896/12,138,336,142.40
  6. Step 6: Final answer
    x = 5,785,644,292.37

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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.