Home / 129,797,257,678.64-179,121,267,302.73-71,926,604,155.54

Finding the Fourth Proportional to 129,797,257,678.64, 179,121,267,302.73 and 71,926,604,155.54

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Solution

The fourth proportional to 129,797,257,678.64, 179,121,267,302.73 and 71,926,604,155.54 is: 99,259,296,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,797,257,678.64 : 179,121,267,302.73 = 71,926,604,155.54 : x
  2. Step 2: Convert to fraction form
    129,797,257,678.64/179,121,267,302.73 = 71,926,604,155.54/x
  3. Step 3: Cross multiply
    129,797,257,678.64x = 179,121,267,302.73 × 71,926,604,155.54
  4. Step 4: Simplify right side
    129,797,257,678.64x = 12,883,584,489,122,131,083,264
  5. Step 5: Solve for x
    x = 12,883,584,489,122,131,083,264/129,797,257,678.64
  6. Step 6: Final answer
    x = 99,259,296,533.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.