Home / 12,101,475.20-18,152,212.80-6,418,774.40

Finding the Fourth Proportional to 12,101,475.20, 18,152,212.80 and 6,418,774.40

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Solution

The fourth proportional to 12,101,475.20, 18,152,212.80 and 6,418,774.40 is: 9,628,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101,475.20 : 18,152,212.80 = 6,418,774.40 : x
  2. Step 2: Convert to fraction form
    12,101,475.20/18,152,212.80 = 6,418,774.40/x
  3. Step 3: Cross multiply
    12,101,475.20x = 18,152,212.80 × 6,418,774.40
  4. Step 4: Simplify right side
    12,101,475.20x = 116,514,958,823,992.33
  5. Step 5: Solve for x
    x = 116,514,958,823,992.33/12,101,475.20
  6. Step 6: Final answer
    x = 9,628,161.60

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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.