Home / 258,169,265.80-387,368,256.54-135,318,386.92

Finding the Fourth Proportional to 258,169,265.80, 387,368,256.54 and 135,318,386.92

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Solution

The fourth proportional to 258,169,265.80, 387,368,256.54 and 135,318,386.92 is: 203,037,520.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,169,265.80 : 387,368,256.54 = 135,318,386.92 : x
  2. Step 2: Convert to fraction form
    258,169,265.80/387,368,256.54 = 135,318,386.92/x
  3. Step 3: Cross multiply
    258,169,265.80x = 387,368,256.54 × 135,318,386.92
  4. Step 4: Simplify right side
    258,169,265.80x = 52,418,047,619,005,536
  5. Step 5: Solve for x
    x = 52,418,047,619,005,536/258,169,265.80
  6. Step 6: Final answer
    x = 203,037,520.58

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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.