Home / 151,351,183.72-208,864,625.54-81,736,557.90

Finding the Fourth Proportional to 151,351,183.72, 208,864,625.54 and 81,736,557.90

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Solution

The fourth proportional to 151,351,183.72, 208,864,625.54 and 81,736,557.90 is: 112,796,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,351,183.72 : 208,864,625.54 = 81,736,557.90 : x
  2. Step 2: Convert to fraction form
    151,351,183.72/208,864,625.54 = 81,736,557.90/x
  3. Step 3: Cross multiply
    151,351,183.72x = 208,864,625.54 × 81,736,557.90
  4. Step 4: Simplify right side
    151,351,183.72x = 17,071,875,557,980,280
  5. Step 5: Solve for x
    x = 17,071,875,557,980,280/151,351,183.72
  6. Step 6: Final answer
    x = 112,796,445.58

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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.