Home / 281,216,031.63-388,061,003.70-155,760,790.29

Finding the Fourth Proportional to 281,216,031.63, 388,061,003.70 and 155,760,790.29

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Solution

The fourth proportional to 281,216,031.63, 388,061,003.70 and 155,760,790.29 is: 214,940,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,216,031.63 : 388,061,003.70 = 155,760,790.29 : x
  2. Step 2: Convert to fraction form
    281,216,031.63/388,061,003.70 = 155,760,790.29/x
  3. Step 3: Cross multiply
    281,216,031.63x = 388,061,003.70 × 155,760,790.29
  4. Step 4: Simplify right side
    281,216,031.63x = 60,444,688,617,042,608
  5. Step 5: Solve for x
    x = 60,444,688,617,042,608/281,216,031.63
  6. Step 6: Final answer
    x = 214,940,408.15

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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.