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Finding the Fourth Proportional to 40,465,101.60, 60,697,652.40 and 28,135,670.40

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Solution

The fourth proportional to 40,465,101.60, 60,697,652.40 and 28,135,670.40 is: 42,203,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,465,101.60 : 60,697,652.40 = 28,135,670.40 : x
  2. Step 2: Convert to fraction form
    40,465,101.60/60,697,652.40 = 28,135,670.40/x
  3. Step 3: Cross multiply
    40,465,101.60x = 60,697,652.40 × 28,135,670.40
  4. Step 4: Simplify right side
    40,465,101.60x = 1,707,769,141,980,168.75
  5. Step 5: Solve for x
    x = 1,707,769,141,980,168.75/40,465,101.60
  6. Step 6: Final answer
    x = 42,203,505.60

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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.