Home / 137,853,350.22-190,265,852.55-82,131,412.86

Finding the Fourth Proportional to 137,853,350.22, 190,265,852.55 and 82,131,412.86

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Solution

The fourth proportional to 137,853,350.22, 190,265,852.55 and 82,131,412.86 is: 113,358,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,853,350.22 : 190,265,852.55 = 82,131,412.86 : x
  2. Step 2: Convert to fraction form
    137,853,350.22/190,265,852.55 = 82,131,412.86/x
  3. Step 3: Cross multiply
    137,853,350.22x = 190,265,852.55 × 82,131,412.86
  4. Step 4: Simplify right side
    137,853,350.22x = 15,626,803,288,943,934
  5. Step 5: Solve for x
    x = 15,626,803,288,943,934/137,853,350.22
  6. Step 6: Final answer
    x = 113,358,168.40

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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.