Home / 208,469,578.08-287,688,356.72-115,650,088.16

Finding the Fourth Proportional to 208,469,578.08, 287,688,356.72 and 115,650,088.16

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Solution

The fourth proportional to 208,469,578.08, 287,688,356.72 and 115,650,088.16 is: 159,597,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,469,578.08 : 287,688,356.72 = 115,650,088.16 : x
  2. Step 2: Convert to fraction form
    208,469,578.08/287,688,356.72 = 115,650,088.16/x
  3. Step 3: Cross multiply
    208,469,578.08x = 287,688,356.72 × 115,650,088.16
  4. Step 4: Simplify right side
    208,469,578.08x = 33,271,183,817,273,532
  5. Step 5: Solve for x
    x = 33,271,183,817,273,532/208,469,578.08
  6. Step 6: Final answer
    x = 159,597,309.71

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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.