Home / 169,149,798,868.58-253,836,478,063.15-79,638,390,797.04

Finding the Fourth Proportional to 169,149,798,868.58, 253,836,478,063.15 and 79,638,390,797.04

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Solution

The fourth proportional to 169,149,798,868.58, 253,836,478,063.15 and 79,638,390,797.04 is: 119,510,213,868.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,149,798,868.58 : 253,836,478,063.15 = 79,638,390,797.04 : x
  2. Step 2: Convert to fraction form
    169,149,798,868.58/253,836,478,063.15 = 79,638,390,797.04/x
  3. Step 3: Cross multiply
    169,149,798,868.58x = 253,836,478,063.15 × 79,638,390,797.04
  4. Step 4: Simplify right side
    169,149,798,868.58x = 20,215,128,638,536,143,601,664
  5. Step 5: Solve for x
    x = 20,215,128,638,536,143,601,664/169,149,798,868.58
  6. Step 6: Final answer
    x = 119,510,213,868.14

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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.