Home / 129,225,163.12-178,331,279.55-70,489,108.24

Finding the Fourth Proportional to 129,225,163.12, 178,331,279.55 and 70,489,108.24

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Solution

The fourth proportional to 129,225,163.12, 178,331,279.55 and 70,489,108.24 is: 97,275,271.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,225,163.12 : 178,331,279.55 = 70,489,108.24 : x
  2. Step 2: Convert to fraction form
    129,225,163.12/178,331,279.55 = 70,489,108.24/x
  3. Step 3: Cross multiply
    129,225,163.12x = 178,331,279.55 × 70,489,108.24
  4. Step 4: Simplify right side
    129,225,163.12x = 12,570,412,866,777,648
  5. Step 5: Solve for x
    x = 12,570,412,866,777,648/129,225,163.12
  6. Step 6: Final answer
    x = 97,275,271.81

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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.