Home / 12,115,358.70-18,181,895.40-8,070,502.20

Finding the Fourth Proportional to 12,115,358.70, 18,181,895.40 and 8,070,502.20

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Solution

The fourth proportional to 12,115,358.70, 18,181,895.40 and 8,070,502.20 is: 12,111,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,358.70 : 18,181,895.40 = 8,070,502.20 : x
  2. Step 2: Convert to fraction form
    12,115,358.70/18,181,895.40 = 8,070,502.20/x
  3. Step 3: Cross multiply
    12,115,358.70x = 18,181,895.40 × 8,070,502.20
  4. Step 4: Simplify right side
    12,115,358.70x = 146,737,026,825,869.88
  5. Step 5: Solve for x
    x = 146,737,026,825,869.88/12,115,358.70
  6. Step 6: Final answer
    x = 12,111,653.52

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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.