Home / 121,124,530,404.30-181,686,795,606.45-81,452,672,330.70

Finding the Fourth Proportional to 121,124,530,404.30, 181,686,795,606.45 and 81,452,672,330.70

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Solution

The fourth proportional to 121,124,530,404.30, 181,686,795,606.45 and 81,452,672,330.70 is: 122,179,008,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,124,530,404.30 : 181,686,795,606.45 = 81,452,672,330.70 : x
  2. Step 2: Convert to fraction form
    121,124,530,404.30/181,686,795,606.45 = 81,452,672,330.70/x
  3. Step 3: Cross multiply
    121,124,530,404.30x = 181,686,795,606.45 × 81,452,672,330.70
  4. Step 4: Simplify right side
    121,124,530,404.30x = 14,798,875,029,347,036,561,408
  5. Step 5: Solve for x
    x = 14,798,875,029,347,036,561,408/121,124,530,404.30
  6. Step 6: Final answer
    x = 122,179,008,496.05

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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.