Home / 129,390,339,100.58-194,095,267,274.91-38,624,589,101.78

Finding the Fourth Proportional to 129,390,339,100.58, 194,095,267,274.91 and 38,624,589,101.78

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Solution

The fourth proportional to 129,390,339,100.58, 194,095,267,274.91 and 38,624,589,101.78 is: 57,939,796,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,390,339,100.58 : 194,095,267,274.91 = 38,624,589,101.78 : x
  2. Step 2: Convert to fraction form
    129,390,339,100.58/194,095,267,274.91 = 38,624,589,101.78/x
  3. Step 3: Cross multiply
    129,390,339,100.58x = 194,095,267,274.91 × 38,624,589,101.78
  4. Step 4: Simplify right side
    129,390,339,100.58x = 7,496,849,945,093,564,530,688
  5. Step 5: Solve for x
    x = 7,496,849,945,093,564,530,688/129,390,339,100.58
  6. Step 6: Final answer
    x = 57,939,796,720.57

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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.