Home / 22,142,209.20-33,213,313.80-7,781,492.40

Finding the Fourth Proportional to 22,142,209.20, 33,213,313.80 and 7,781,492.40

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Solution

The fourth proportional to 22,142,209.20, 33,213,313.80 and 7,781,492.40 is: 11,672,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142,209.20 : 33,213,313.80 = 7,781,492.40 : x
  2. Step 2: Convert to fraction form
    22,142,209.20/33,213,313.80 = 7,781,492.40/x
  3. Step 3: Cross multiply
    22,142,209.20x = 33,213,313.80 × 7,781,492.40
  4. Step 4: Simplify right side
    22,142,209.20x = 258,449,148,913,515.12
  5. Step 5: Solve for x
    x = 258,449,148,913,515.12/22,142,209.20
  6. Step 6: Final answer
    x = 11,672,238.60

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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.