Home / 12,127,645,531.60-18,191,468,297.40-7,413,551,285.20

Finding the Fourth Proportional to 12,127,645,531.60, 18,191,468,297.40 and 7,413,551,285.20

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Solution

The fourth proportional to 12,127,645,531.60, 18,191,468,297.40 and 7,413,551,285.20 is: 11,120,326,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,645,531.60 : 18,191,468,297.40 = 7,413,551,285.20 : x
  2. Step 2: Convert to fraction form
    12,127,645,531.60/18,191,468,297.40 = 7,413,551,285.20/x
  3. Step 3: Cross multiply
    12,127,645,531.60x = 18,191,468,297.40 × 7,413,551,285.20
  4. Step 4: Simplify right side
    12,127,645,531.60x = 134,863,383,175,864,827,904
  5. Step 5: Solve for x
    x = 134,863,383,175,864,827,904/12,127,645,531.60
  6. Step 6: Final answer
    x = 11,120,326,927.80

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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.