Home / 403,812,039.20-605,718,058.80-289,150,253.60

Finding the Fourth Proportional to 403,812,039.20, 605,718,058.80 and 289,150,253.60

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Solution

The fourth proportional to 403,812,039.20, 605,718,058.80 and 289,150,253.60 is: 433,725,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,812,039.20 : 605,718,058.80 = 289,150,253.60 : x
  2. Step 2: Convert to fraction form
    403,812,039.20/605,718,058.80 = 289,150,253.60/x
  3. Step 3: Cross multiply
    403,812,039.20x = 605,718,058.80 × 289,150,253.60
  4. Step 4: Simplify right side
    403,812,039.20x = 175,143,530,312,119,712
  5. Step 5: Solve for x
    x = 175,143,530,312,119,712/403,812,039.20
  6. Step 6: Final answer
    x = 433,725,380.40

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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.