Home / 129,489,705.36-178,698,198.15-70,756,174.65

Finding the Fourth Proportional to 129,489,705.36, 178,698,198.15 and 70,756,174.65

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Solution

The fourth proportional to 129,489,705.36, 178,698,198.15 and 70,756,174.65 is: 97,644,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,489,705.36 : 178,698,198.15 = 70,756,174.65 : x
  2. Step 2: Convert to fraction form
    129,489,705.36/178,698,198.15 = 70,756,174.65/x
  3. Step 3: Cross multiply
    129,489,705.36x = 178,698,198.15 × 70,756,174.65
  4. Step 4: Simplify right side
    129,489,705.36x = 12,644,000,917,941,708
  5. Step 5: Solve for x
    x = 12,644,000,917,941,708/129,489,705.36
  6. Step 6: Final answer
    x = 97,644,835.03

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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.