Home / 278,323,973.94-384,153,977.55-159,315,553.68

Finding the Fourth Proportional to 278,323,973.94, 384,153,977.55 and 159,315,553.68

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Solution

The fourth proportional to 278,323,973.94, 384,153,977.55 and 159,315,553.68 is: 219,893,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,323,973.94 : 384,153,977.55 = 159,315,553.68 : x
  2. Step 2: Convert to fraction form
    278,323,973.94/384,153,977.55 = 159,315,553.68/x
  3. Step 3: Cross multiply
    278,323,973.94x = 384,153,977.55 × 159,315,553.68
  4. Step 4: Simplify right side
    278,323,973.94x = 61,201,703,631,752,544
  5. Step 5: Solve for x
    x = 61,201,703,631,752,544/278,323,973.94
  6. Step 6: Final answer
    x = 219,893,754.62

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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.