Home / 288,664,520.91-398,365,440.62-163,214,022.01

Finding the Fourth Proportional to 288,664,520.91, 398,365,440.62 and 163,214,022.01

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Solution

The fourth proportional to 288,664,520.91, 398,365,440.62 and 163,214,022.01 is: 225,240,100.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,664,520.91 : 398,365,440.62 = 163,214,022.01 : x
  2. Step 2: Convert to fraction form
    288,664,520.91/398,365,440.62 = 163,214,022.01/x
  3. Step 3: Cross multiply
    288,664,520.91x = 398,365,440.62 × 163,214,022.01
  4. Step 4: Simplify right side
    288,664,520.91x = 65,018,825,793,376,024
  5. Step 5: Solve for x
    x = 65,018,825,793,376,024/288,664,520.91
  6. Step 6: Final answer
    x = 225,240,100.82

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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.