Home / 155,971,247.46-215,247,048.06-86,356,629.30

Finding the Fourth Proportional to 155,971,247.46, 215,247,048.06 and 86,356,629.30

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Solution

The fourth proportional to 155,971,247.46, 215,247,048.06 and 86,356,629.30 is: 119,175,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,971,247.46 : 215,247,048.06 = 86,356,629.30 : x
  2. Step 2: Convert to fraction form
    155,971,247.46/215,247,048.06 = 86,356,629.30/x
  3. Step 3: Cross multiply
    155,971,247.46x = 215,247,048.06 × 86,356,629.30
  4. Step 4: Simplify right side
    155,971,247.46x = 18,588,009,537,236,704
  5. Step 5: Solve for x
    x = 18,588,009,537,236,704/155,971,247.46
  6. Step 6: Final answer
    x = 119,175,872.73

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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.