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Finding the Fourth Proportional to 403,563,677.80, 605,345,516.70 and 112,475,727.40

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Solution

The fourth proportional to 403,563,677.80, 605,345,516.70 and 112,475,727.40 is: 168,713,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,563,677.80 : 605,345,516.70 = 112,475,727.40 : x
  2. Step 2: Convert to fraction form
    403,563,677.80/605,345,516.70 = 112,475,727.40/x
  3. Step 3: Cross multiply
    403,563,677.80x = 605,345,516.70 × 112,475,727.40
  4. Step 4: Simplify right side
    403,563,677.80x = 68,086,677,319,161,360
  5. Step 5: Solve for x
    x = 68,086,677,319,161,360/403,563,677.80
  6. Step 6: Final answer
    x = 168,713,591.10

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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.