Home / 280,410,876.02-420,240,330.66-218,237,261.42

Finding the Fourth Proportional to 280,410,876.02, 420,240,330.66 and 218,237,261.42

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Solution

The fourth proportional to 280,410,876.02, 420,240,330.66 and 218,237,261.42 is: 327,063,273.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,410,876.02 : 420,240,330.66 = 218,237,261.42 : x
  2. Step 2: Convert to fraction form
    280,410,876.02/420,240,330.66 = 218,237,261.42/x
  3. Step 3: Cross multiply
    280,410,876.02x = 420,240,330.66 × 218,237,261.42
  4. Step 4: Simplify right side
    280,410,876.02x = 91,712,098,901,473,664
  5. Step 5: Solve for x
    x = 91,712,098,901,473,664/280,410,876.02
  6. Step 6: Final answer
    x = 327,063,273.02

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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.