Home / 208,047,078.27-287,101,449.50-115,225,593.21

Finding the Fourth Proportional to 208,047,078.27, 287,101,449.50 and 115,225,593.21

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Solution

The fourth proportional to 208,047,078.27, 287,101,449.50 and 115,225,593.21 is: 159,009,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,047,078.27 : 287,101,449.50 = 115,225,593.21 : x
  2. Step 2: Convert to fraction form
    208,047,078.27/287,101,449.50 = 115,225,593.21/x
  3. Step 3: Cross multiply
    208,047,078.27x = 287,101,449.50 × 115,225,593.21
  4. Step 4: Simplify right side
    208,047,078.27x = 33,081,434,830,088,356
  5. Step 5: Solve for x
    x = 33,081,434,830,088,356/208,047,078.27
  6. Step 6: Final answer
    x = 159,009,369.92

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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.