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Finding the Fourth Proportional to 206,504,471.86, 309,813,465.30 and 60,938,048.32

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Solution

The fourth proportional to 206,504,471.86, 309,813,465.30 and 60,938,048.32 is: 91,423,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,504,471.86 : 309,813,465.30 = 60,938,048.32 : x
  2. Step 2: Convert to fraction form
    206,504,471.86/309,813,465.30 = 60,938,048.32/x
  3. Step 3: Cross multiply
    206,504,471.86x = 309,813,465.30 × 60,938,048.32
  4. Step 4: Simplify right side
    206,504,471.86x = 18,879,427,918,638,044
  5. Step 5: Solve for x
    x = 18,879,427,918,638,044/206,504,471.86
  6. Step 6: Final answer
    x = 91,423,821.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.