Home / 30,411,786.96-45,612,169.74-12,215,247.12

Finding the Fourth Proportional to 30,411,786.96, 45,612,169.74 and 12,215,247.12

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Solution

The fourth proportional to 30,411,786.96, 45,612,169.74 and 12,215,247.12 is: 18,320,657.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,411,786.96 : 45,612,169.74 = 12,215,247.12 : x
  2. Step 2: Convert to fraction form
    30,411,786.96/45,612,169.74 = 12,215,247.12/x
  3. Step 3: Cross multiply
    30,411,786.96x = 45,612,169.74 × 12,215,247.12
  4. Step 4: Simplify right side
    30,411,786.96x = 557,163,925,053,486.12
  5. Step 5: Solve for x
    x = 557,163,925,053,486.12/30,411,786.96
  6. Step 6: Final answer
    x = 18,320,657.24

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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.