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Finding the Fourth Proportional to 668,807,557.66, 922,956,567.83 and 371,449,745.97

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Solution

The fourth proportional to 668,807,557.66, 922,956,567.83 and 371,449,745.97 is: 512,601,837.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,807,557.66 : 922,956,567.83 = 371,449,745.97 : x
  2. Step 2: Convert to fraction form
    668,807,557.66/922,956,567.83 = 371,449,745.97/x
  3. Step 3: Cross multiply
    668,807,557.66x = 922,956,567.83 × 371,449,745.97
  4. Step 4: Simplify right side
    668,807,557.66x = 342,831,982,661,796,608
  5. Step 5: Solve for x
    x = 342,831,982,661,796,608/668,807,557.66
  6. Step 6: Final answer
    x = 512,601,837.01

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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.