Home / 288,861,712.84-398,629,163.72-165,105,047.16

Finding the Fourth Proportional to 288,861,712.84, 398,629,163.72 and 165,105,047.16

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Solution

The fourth proportional to 288,861,712.84, 398,629,163.72 and 165,105,047.16 is: 227,844,965.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,712.84 : 398,629,163.72 = 165,105,047.16 : x
  2. Step 2: Convert to fraction form
    288,861,712.84/398,629,163.72 = 165,105,047.16/x
  3. Step 3: Cross multiply
    288,861,712.84x = 398,629,163.72 × 165,105,047.16
  4. Step 4: Simplify right side
    288,861,712.84x = 65,815,686,875,341,968
  5. Step 5: Solve for x
    x = 65,815,686,875,341,968/288,861,712.84
  6. Step 6: Final answer
    x = 227,844,965.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.