Home / 112,133,613.80-168,200,420.70-83,435,799.80

Finding the Fourth Proportional to 112,133,613.80, 168,200,420.70 and 83,435,799.80

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Solution

The fourth proportional to 112,133,613.80, 168,200,420.70 and 83,435,799.80 is: 125,153,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,133,613.80 : 168,200,420.70 = 83,435,799.80 : x
  2. Step 2: Convert to fraction form
    112,133,613.80/168,200,420.70 = 83,435,799.80/x
  3. Step 3: Cross multiply
    112,133,613.80x = 168,200,420.70 × 83,435,799.80
  4. Step 4: Simplify right side
    112,133,613.80x = 14,033,936,627,800,974
  5. Step 5: Solve for x
    x = 14,033,936,627,800,974/112,133,613.80
  6. Step 6: Final answer
    x = 125,153,699.70

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Double scale
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1.5x scale

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.