Home / 12,592,128,468.40-18,888,192,702.60-3,868,426,913.20

Finding the Fourth Proportional to 12,592,128,468.40, 18,888,192,702.60 and 3,868,426,913.20

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Solution

The fourth proportional to 12,592,128,468.40, 18,888,192,702.60 and 3,868,426,913.20 is: 5,802,640,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,592,128,468.40 : 18,888,192,702.60 = 3,868,426,913.20 : x
  2. Step 2: Convert to fraction form
    12,592,128,468.40/18,888,192,702.60 = 3,868,426,913.20/x
  3. Step 3: Cross multiply
    12,592,128,468.40x = 18,888,192,702.60 × 3,868,426,913.20
  4. Step 4: Simplify right side
    12,592,128,468.40x = 73,067,592,992,445,677,568
  5. Step 5: Solve for x
    x = 73,067,592,992,445,677,568/12,592,128,468.40
  6. Step 6: Final answer
    x = 5,802,640,369.80

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Double scale
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Similar ratio
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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.