Home / 219,922,407.70-330,069,615.90-90,622,812.40

Finding the Fourth Proportional to 219,922,407.70, 330,069,615.90 and 90,622,812.40

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Solution

The fourth proportional to 219,922,407.70, 330,069,615.90 and 90,622,812.40 is: 136,010,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,922,407.70 : 330,069,615.90 = 90,622,812.40 : x
  2. Step 2: Convert to fraction form
    219,922,407.70/330,069,615.90 = 90,622,812.40/x
  3. Step 3: Cross multiply
    219,922,407.70x = 330,069,615.90 × 90,622,812.40
  4. Step 4: Simplify right side
    219,922,407.70x = 29,911,836,880,645,756
  5. Step 5: Solve for x
    x = 29,911,836,880,645,756/219,922,407.70
  6. Step 6: Final answer
    x = 136,010,864.89

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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.