Home / 288,664,521.91-398,365,442-163,214,023.01

Finding the Fourth Proportional to 288,664,521.91, 398,365,442 and 163,214,023.01

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Solution

The fourth proportional to 288,664,521.91, 398,365,442 and 163,214,023.01 is: 225,240,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,664,521.91 : 398,365,442 = 163,214,023.01 : x
  2. Step 2: Convert to fraction form
    288,664,521.91/398,365,442 = 163,214,023.01/x
  3. Step 3: Cross multiply
    288,664,521.91x = 398,365,442 × 163,214,023.01
  4. Step 4: Simplify right side
    288,664,521.91x = 65,018,826,416,976,816
  5. Step 5: Solve for x
    x = 65,018,826,416,976,816/288,664,521.91
  6. Step 6: Final answer
    x = 225,240,102.20

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1.5x scale

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.