Home / 281,037,290.80-387,823,131.48-155,595,078.04

Finding the Fourth Proportional to 281,037,290.80, 387,823,131.48 and 155,595,078.04

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Solution

The fourth proportional to 281,037,290.80, 387,823,131.48 and 155,595,078.04 is: 214,716,595.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037,290.80 : 387,823,131.48 = 155,595,078.04 : x
  2. Step 2: Convert to fraction form
    281,037,290.80/387,823,131.48 = 155,595,078.04/x
  3. Step 3: Cross multiply
    281,037,290.80x = 387,823,131.48 × 155,595,078.04
  4. Step 4: Simplify right side
    281,037,290.80x = 60,343,370,408,347,784
  5. Step 5: Solve for x
    x = 60,343,370,408,347,784/281,037,290.80
  6. Step 6: Final answer
    x = 214,716,595.92

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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.