Home / 278,308,321.38-384,070,109.22-152,872,115.94

Finding the Fourth Proportional to 278,308,321.38, 384,070,109.22 and 152,872,115.94

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Solution

The fourth proportional to 278,308,321.38, 384,070,109.22 and 152,872,115.94 is: 210,966,060.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,308,321.38 : 384,070,109.22 = 152,872,115.94 : x
  2. Step 2: Convert to fraction form
    278,308,321.38/384,070,109.22 = 152,872,115.94/x
  3. Step 3: Cross multiply
    278,308,321.38x = 384,070,109.22 × 152,872,115.94
  4. Step 4: Simplify right side
    278,308,321.38x = 58,713,610,265,768,304
  5. Step 5: Solve for x
    x = 58,713,610,265,768,304/278,308,321.38
  6. Step 6: Final answer
    x = 210,966,060.86

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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.