Home / 220,243,761.48-330,294,915.18-72,658,145.64

Finding the Fourth Proportional to 220,243,761.48, 330,294,915.18 and 72,658,145.64

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Solution

The fourth proportional to 220,243,761.48, 330,294,915.18 and 72,658,145.64 is: 108,963,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,243,761.48 : 330,294,915.18 = 72,658,145.64 : x
  2. Step 2: Convert to fraction form
    220,243,761.48/330,294,915.18 = 72,658,145.64/x
  3. Step 3: Cross multiply
    220,243,761.48x = 330,294,915.18 × 72,658,145.64
  4. Step 4: Simplify right side
    220,243,761.48x = 23,998,616,051,299,888
  5. Step 5: Solve for x
    x = 23,998,616,051,299,888/220,243,761.48
  6. Step 6: Final answer
    x = 108,963,885.70

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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.