Home / 28,558,940,431.50-42,838,593,195.92-8,390,283,782.58

Finding the Fourth Proportional to 28,558,940,431.50, 42,838,593,195.92 and 8,390,283,782.58

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Solution

The fourth proportional to 28,558,940,431.50, 42,838,593,195.92 and 8,390,283,782.58 is: 12,585,479,304.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558,940,431.50 : 42,838,593,195.92 = 8,390,283,782.58 : x
  2. Step 2: Convert to fraction form
    28,558,940,431.50/42,838,593,195.92 = 8,390,283,782.58/x
  3. Step 3: Cross multiply
    28,558,940,431.50x = 42,838,593,195.92 × 8,390,283,782.58
  4. Step 4: Simplify right side
    28,558,940,431.50x = 359,427,953,760,235,945,984
  5. Step 5: Solve for x
    x = 359,427,953,760,235,945,984/28,558,940,431.50
  6. Step 6: Final answer
    x = 12,585,479,304.54

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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.