Home / 278,748,006.32-384,652,248.36-153,308,902.88

Finding the Fourth Proportional to 278,748,006.32, 384,652,248.36 and 153,308,902.88

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Solution

The fourth proportional to 278,748,006.32, 384,652,248.36 and 153,308,902.88 is: 211,555,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,748,006.32 : 384,652,248.36 = 153,308,902.88 : x
  2. Step 2: Convert to fraction form
    278,748,006.32/384,652,248.36 = 153,308,902.88/x
  3. Step 3: Cross multiply
    278,748,006.32x = 384,652,248.36 × 153,308,902.88
  4. Step 4: Simplify right side
    278,748,006.32x = 58,970,614,186,396,880
  5. Step 5: Solve for x
    x = 58,970,614,186,396,880/278,748,006.32
  6. Step 6: Final answer
    x = 211,555,285.95

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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.