Home / 39,619,158,930.67-54,674,872,856.84-21,554,777,838.55

Finding the Fourth Proportional to 39,619,158,930.67, 54,674,872,856.84 and 21,554,777,838.55

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Solution

The fourth proportional to 39,619,158,930.67, 54,674,872,856.84 and 21,554,777,838.55 is: 29,745,829,280.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619,158,930.67 : 54,674,872,856.84 = 21,554,777,838.55 : x
  2. Step 2: Convert to fraction form
    39,619,158,930.67/54,674,872,856.84 = 21,554,777,838.55/x
  3. Step 3: Cross multiply
    39,619,158,930.67x = 54,674,872,856.84 × 21,554,777,838.55
  4. Step 4: Simplify right side
    39,619,158,930.67x = 1,178,504,737,779,772,555,264
  5. Step 5: Solve for x
    x = 1,178,504,737,779,772,555,264/39,619,158,930.67
  6. Step 6: Final answer
    x = 29,745,829,280.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.