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Finding the Fourth Proportional to 211,356,003.40, 317,034,005.10 and 211,356,003.40

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Solution

The fourth proportional to 211,356,003.40, 317,034,005.10 and 211,356,003.40 is: 317,034,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,356,003.40 : 317,034,005.10 = 211,356,003.40 : x
  2. Step 2: Convert to fraction form
    211,356,003.40/317,034,005.10 = 211,356,003.40/x
  3. Step 3: Cross multiply
    211,356,003.40x = 317,034,005.10 × 211,356,003.40
  4. Step 4: Simplify right side
    211,356,003.40x = 67,007,040,259,831,224
  5. Step 5: Solve for x
    x = 67,007,040,259,831,224/211,356,003.40
  6. Step 6: Final answer
    x = 317,034,005.10

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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.