Home / 278,339,361.32-384,085,918.35-160,872,299.88

Finding the Fourth Proportional to 278,339,361.32, 384,085,918.35 and 160,872,299.88

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Solution

The fourth proportional to 278,339,361.32, 384,085,918.35 and 160,872,299.88 is: 221,990,827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,339,361.32 : 384,085,918.35 = 160,872,299.88 : x
  2. Step 2: Convert to fraction form
    278,339,361.32/384,085,918.35 = 160,872,299.88/x
  3. Step 3: Cross multiply
    278,339,361.32x = 384,085,918.35 × 160,872,299.88
  4. Step 4: Simplify right side
    278,339,361.32x = 61,788,785,036,486,400
  5. Step 5: Solve for x
    x = 61,788,785,036,486,400/278,339,361.32
  6. Step 6: Final answer
    x = 221,990,827.11

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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.