Home / 278,323,970.52-384,153,972.86-159,315,550.28

Finding the Fourth Proportional to 278,323,970.52, 384,153,972.86 and 159,315,550.28

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Solution

The fourth proportional to 278,323,970.52, 384,153,972.86 and 159,315,550.28 is: 219,893,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,323,970.52 : 384,153,972.86 = 159,315,550.28 : x
  2. Step 2: Convert to fraction form
    278,323,970.52/384,153,972.86 = 159,315,550.28/x
  3. Step 3: Cross multiply
    278,323,970.52x = 384,153,972.86 × 159,315,550.28
  4. Step 4: Simplify right side
    278,323,970.52x = 61,201,701,578,439,088
  5. Step 5: Solve for x
    x = 61,201,701,578,439,088/278,323,970.52
  6. Step 6: Final answer
    x = 219,893,749.95

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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.