Home / 220,332,643.92-330,487,005.60-66,966,742.98

Finding the Fourth Proportional to 220,332,643.92, 330,487,005.60 and 66,966,742.98

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Solution

The fourth proportional to 220,332,643.92, 330,487,005.60 and 66,966,742.98 is: 100,446,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,332,643.92 : 330,487,005.60 = 66,966,742.98 : x
  2. Step 2: Convert to fraction form
    220,332,643.92/330,487,005.60 = 66,966,742.98/x
  3. Step 3: Cross multiply
    220,332,643.92x = 330,487,005.60 × 66,966,742.98
  4. Step 4: Simplify right side
    220,332,643.92x = 22,131,638,362,245,020
  5. Step 5: Solve for x
    x = 22,131,638,362,245,020/220,332,643.92
  6. Step 6: Final answer
    x = 100,446,479.33

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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.