Home / 31,470,122.19-43,114,221.21-30,290,630.73

Finding the Fourth Proportional to 31,470,122.19, 43,114,221.21 and 30,290,630.73

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Solution

The fourth proportional to 31,470,122.19, 43,114,221.21 and 30,290,630.73 is: 41,498,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470,122.19 : 43,114,221.21 = 30,290,630.73 : x
  2. Step 2: Convert to fraction form
    31,470,122.19/43,114,221.21 = 30,290,630.73/x
  3. Step 3: Cross multiply
    31,470,122.19x = 43,114,221.21 × 30,290,630.73
  4. Step 4: Simplify right side
    31,470,122.19x = 1,305,956,953,883,643.75
  5. Step 5: Solve for x
    x = 1,305,956,953,883,643.75/31,470,122.19
  6. Step 6: Final answer
    x = 41,498,312.15

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.