Home / 169,149,798,856.65-253,836,478,045.35-79,638,390,785.18

Finding the Fourth Proportional to 169,149,798,856.65, 253,836,478,045.35 and 79,638,390,785.18

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Solution

The fourth proportional to 169,149,798,856.65, 253,836,478,045.35 and 79,638,390,785.18 is: 119,510,213,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,149,798,856.65 : 253,836,478,045.35 = 79,638,390,785.18 : x
  2. Step 2: Convert to fraction form
    169,149,798,856.65/253,836,478,045.35 = 79,638,390,785.18/x
  3. Step 3: Cross multiply
    169,149,798,856.65x = 253,836,478,045.35 × 79,638,390,785.18
  4. Step 4: Simplify right side
    169,149,798,856.65x = 20,215,128,634,108,078,456,832
  5. Step 5: Solve for x
    x = 20,215,128,634,108,078,456,832/169,149,798,856.65
  6. Step 6: Final answer
    x = 119,510,213,850.39

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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.