Home / 286,978,746,372.15-396,042,701,491.10-165,043,576,006.20

Finding the Fourth Proportional to 286,978,746,372.15, 396,042,701,491.10 and 165,043,576,006.20

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Solution

The fourth proportional to 286,978,746,372.15, 396,042,701,491.10 and 165,043,576,006.20 is: 227,767,054,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,978,746,372.15 : 396,042,701,491.10 = 165,043,576,006.20 : x
  2. Step 2: Convert to fraction form
    286,978,746,372.15/396,042,701,491.10 = 165,043,576,006.20/x
  3. Step 3: Cross multiply
    286,978,746,372.15x = 396,042,701,491.10 × 165,043,576,006.20
  4. Step 4: Simplify right side
    286,978,746,372.15x = 65,364,303,705,247,139,758,080
  5. Step 5: Solve for x
    x = 65,364,303,705,247,139,758,080/286,978,746,372.15
  6. Step 6: Final answer
    x = 227,767,054,290.79

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1.5x scale

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.