Home / 12,097,411.60-18,146,117.40-7,618,435.60

Finding the Fourth Proportional to 12,097,411.60, 18,146,117.40 and 7,618,435.60

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Solution

The fourth proportional to 12,097,411.60, 18,146,117.40 and 7,618,435.60 is: 11,427,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,411.60 : 18,146,117.40 = 7,618,435.60 : x
  2. Step 2: Convert to fraction form
    12,097,411.60/18,146,117.40 = 7,618,435.60/x
  3. Step 3: Cross multiply
    12,097,411.60x = 18,146,117.40 × 7,618,435.60
  4. Step 4: Simplify right side
    12,097,411.60x = 138,245,026,801,939.42
  5. Step 5: Solve for x
    x = 138,245,026,801,939.42/12,097,411.60
  6. Step 6: Final answer
    x = 11,427,653.40

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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.