Home / 70,883,907.40-106,325,861.10-42,115,234.60

Finding the Fourth Proportional to 70,883,907.40, 106,325,861.10 and 42,115,234.60

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Solution

The fourth proportional to 70,883,907.40, 106,325,861.10 and 42,115,234.60 is: 63,172,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883,907.40 : 106,325,861.10 = 42,115,234.60 : x
  2. Step 2: Convert to fraction form
    70,883,907.40/106,325,861.10 = 42,115,234.60/x
  3. Step 3: Cross multiply
    70,883,907.40x = 106,325,861.10 × 42,115,234.60
  4. Step 4: Simplify right side
    70,883,907.40x = 4,477,938,584,273,514
  5. Step 5: Solve for x
    x = 4,477,938,584,273,514/70,883,907.40
  6. Step 6: Final answer
    x = 63,172,851.90

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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.