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Finding the Fourth Proportional to 668,282,208.36, 922,154,651.82 and 370,936,983.06

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Solution

The fourth proportional to 668,282,208.36, 922,154,651.82 and 370,936,983.06 is: 511,851,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,282,208.36 : 922,154,651.82 = 370,936,983.06 : x
  2. Step 2: Convert to fraction form
    668,282,208.36/922,154,651.82 = 370,936,983.06/x
  3. Step 3: Cross multiply
    668,282,208.36x = 922,154,651.82 × 370,936,983.06
  4. Step 4: Simplify right side
    668,282,208.36x = 342,061,264,460,855,552
  5. Step 5: Solve for x
    x = 342,061,264,460,855,552/668,282,208.36
  6. Step 6: Final answer
    x = 511,851,520.48

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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.