Home / 484,421,167.70-726,631,751.55-427,025,539.70

Finding the Fourth Proportional to 484,421,167.70, 726,631,751.55 and 427,025,539.70

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Solution

The fourth proportional to 484,421,167.70, 726,631,751.55 and 427,025,539.70 is: 640,538,309.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,421,167.70 : 726,631,751.55 = 427,025,539.70 : x
  2. Step 2: Convert to fraction form
    484,421,167.70/726,631,751.55 = 427,025,539.70/x
  3. Step 3: Cross multiply
    484,421,167.70x = 726,631,751.55 × 427,025,539.70
  4. Step 4: Simplify right side
    484,421,167.70x = 310,290,315,868,795,008
  5. Step 5: Solve for x
    x = 310,290,315,868,795,008/484,421,167.70
  6. Step 6: Final answer
    x = 640,538,309.55

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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.