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Finding the Fourth Proportional to 668,807,557.16, 922,956,567.14 and 371,449,745.47

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Solution

The fourth proportional to 668,807,557.16, 922,956,567.14 and 371,449,745.47 is: 512,601,836.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,807,557.16 : 922,956,567.14 = 371,449,745.47 : x
  2. Step 2: Convert to fraction form
    668,807,557.16/922,956,567.14 = 371,449,745.47/x
  3. Step 3: Cross multiply
    668,807,557.16x = 922,956,567.14 × 371,449,745.47
  4. Step 4: Simplify right side
    668,807,557.16x = 342,831,981,937,545,920
  5. Step 5: Solve for x
    x = 342,831,981,937,545,920/668,807,557.16
  6. Step 6: Final answer
    x = 512,601,836.31

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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.