Home / 2,808,133,037.70-4,212,199,556.55-1,991,839,661.70

Finding the Fourth Proportional to 2,808,133,037.70, 4,212,199,556.55 and 1,991,839,661.70

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Solution

The fourth proportional to 2,808,133,037.70, 4,212,199,556.55 and 1,991,839,661.70 is: 2,987,759,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,133,037.70 : 4,212,199,556.55 = 1,991,839,661.70 : x
  2. Step 2: Convert to fraction form
    2,808,133,037.70/4,212,199,556.55 = 1,991,839,661.70/x
  3. Step 3: Cross multiply
    2,808,133,037.70x = 4,212,199,556.55 × 1,991,839,661.70
  4. Step 4: Simplify right side
    2,808,133,037.70x = 8,390,026,139,731,442,688
  5. Step 5: Solve for x
    x = 8,390,026,139,731,442,688/2,808,133,037.70
  6. Step 6: Final answer
    x = 2,987,759,492.55

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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.