Home / 68,416,520.16-94,379,002.56-42,302,690.40

Finding the Fourth Proportional to 68,416,520.16, 94,379,002.56 and 42,302,690.40

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Solution

The fourth proportional to 68,416,520.16, 94,379,002.56 and 42,302,690.40 is: 58,355,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,416,520.16 : 94,379,002.56 = 42,302,690.40 : x
  2. Step 2: Convert to fraction form
    68,416,520.16/94,379,002.56 = 42,302,690.40/x
  3. Step 3: Cross multiply
    68,416,520.16x = 94,379,002.56 × 42,302,690.40
  4. Step 4: Simplify right side
    68,416,520.16x = 3,992,485,725,556,487.50
  5. Step 5: Solve for x
    x = 3,992,485,725,556,487.50/68,416,520.16
  6. Step 6: Final answer
    x = 58,355,580.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.