Home / 169,149,798,855.15-253,836,478,043.10-79,638,390,783.68

Finding the Fourth Proportional to 169,149,798,855.15, 253,836,478,043.10 and 79,638,390,783.68

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Solution

The fourth proportional to 169,149,798,855.15, 253,836,478,043.10 and 79,638,390,783.68 is: 119,510,213,848.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,149,798,855.15 : 253,836,478,043.10 = 79,638,390,783.68 : x
  2. Step 2: Convert to fraction form
    169,149,798,855.15/253,836,478,043.10 = 79,638,390,783.68/x
  3. Step 3: Cross multiply
    169,149,798,855.15x = 253,836,478,043.10 × 79,638,390,783.68
  4. Step 4: Simplify right side
    169,149,798,855.15x = 20,215,128,633,548,138,872,832
  5. Step 5: Solve for x
    x = 20,215,128,633,548,138,872,832/169,149,798,855.15
  6. Step 6: Final answer
    x = 119,510,213,848.14

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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.