Home / 169,149,798,869.33-253,836,478,064.27-79,638,390,797.79

Finding the Fourth Proportional to 169,149,798,869.33, 253,836,478,064.27 and 79,638,390,797.79

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Solution

The fourth proportional to 169,149,798,869.33, 253,836,478,064.27 and 79,638,390,797.79 is: 119,510,213,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,149,798,869.33 : 253,836,478,064.27 = 79,638,390,797.79 : x
  2. Step 2: Convert to fraction form
    169,149,798,869.33/253,836,478,064.27 = 79,638,390,797.79/x
  3. Step 3: Cross multiply
    169,149,798,869.33x = 253,836,478,064.27 × 79,638,390,797.79
  4. Step 4: Simplify right side
    169,149,798,869.33x = 20,215,128,638,815,714,934,784
  5. Step 5: Solve for x
    x = 20,215,128,638,815,714,934,784/169,149,798,869.33
  6. Step 6: Final answer
    x = 119,510,213,869.26

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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.