Home / 809,666,713.20-1,214,500,069.80-401,520,025.20

Finding the Fourth Proportional to 809,666,713.20, 1,214,500,069.80 and 401,520,025.20

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Solution

The fourth proportional to 809,666,713.20, 1,214,500,069.80 and 401,520,025.20 is: 602,280,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,666,713.20 : 1,214,500,069.80 = 401,520,025.20 : x
  2. Step 2: Convert to fraction form
    809,666,713.20/1,214,500,069.80 = 401,520,025.20/x
  3. Step 3: Cross multiply
    809,666,713.20x = 1,214,500,069.80 × 401,520,025.20
  4. Step 4: Simplify right side
    809,666,713.20x = 487,646,098,631,497,728
  5. Step 5: Solve for x
    x = 487,646,098,631,497,728/809,666,713.20
  6. Step 6: Final answer
    x = 602,280,037.80

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1.5x scale

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.