Home / 45,781,492.20-68,672,238.30-42,273,981.60

Finding the Fourth Proportional to 45,781,492.20, 68,672,238.30 and 42,273,981.60

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Solution

The fourth proportional to 45,781,492.20, 68,672,238.30 and 42,273,981.60 is: 63,410,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,781,492.20 : 68,672,238.30 = 42,273,981.60 : x
  2. Step 2: Convert to fraction form
    45,781,492.20/68,672,238.30 = 42,273,981.60/x
  3. Step 3: Cross multiply
    45,781,492.20x = 68,672,238.30 × 42,273,981.60
  4. Step 4: Simplify right side
    45,781,492.20x = 2,903,048,938,325,015.50
  5. Step 5: Solve for x
    x = 2,903,048,938,325,015.50/45,781,492.20
  6. Step 6: Final answer
    x = 63,410,972.40

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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.