Home / 280,499,364.73-387,081,698.02-156,741,058.81

Finding the Fourth Proportional to 280,499,364.73, 387,081,698.02 and 156,741,058.81

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Solution

The fourth proportional to 280,499,364.73, 387,081,698.02 and 156,741,058.81 is: 216,298,511.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,499,364.73 : 387,081,698.02 = 156,741,058.81 : x
  2. Step 2: Convert to fraction form
    280,499,364.73/387,081,698.02 = 156,741,058.81/x
  3. Step 3: Cross multiply
    280,499,364.73x = 387,081,698.02 × 156,741,058.81
  4. Step 4: Simplify right side
    280,499,364.73x = 60,671,595,193,627,480
  5. Step 5: Solve for x
    x = 60,671,595,193,627,480/280,499,364.73
  6. Step 6: Final answer
    x = 216,298,511.95

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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.