Home / 81,929,283.55-122,808,089.75-38,173,963.25

Finding the Fourth Proportional to 81,929,283.55, 122,808,089.75 and 38,173,963.25

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Solution

The fourth proportional to 81,929,283.55, 122,808,089.75 and 38,173,963.25 is: 57,220,950.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,929,283.55 : 122,808,089.75 = 38,173,963.25 : x
  2. Step 2: Convert to fraction form
    81,929,283.55/122,808,089.75 = 38,173,963.25/x
  3. Step 3: Cross multiply
    81,929,283.55x = 122,808,089.75 × 38,173,963.25
  4. Step 4: Simplify right side
    81,929,283.55x = 4,688,071,504,919,202
  5. Step 5: Solve for x
    x = 4,688,071,504,919,202/81,929,283.55
  6. Step 6: Final answer
    x = 57,220,950.82

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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.