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Finding the Fourth Proportional to 620,496,744.60, 856,278,536.04 and 338,233,005.32

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Solution

The fourth proportional to 620,496,744.60, 856,278,536.04 and 338,233,005.32 is: 466,757,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,496,744.60 : 856,278,536.04 = 338,233,005.32 : x
  2. Step 2: Convert to fraction form
    620,496,744.60/856,278,536.04 = 338,233,005.32/x
  3. Step 3: Cross multiply
    620,496,744.60x = 856,278,536.04 × 338,233,005.32
  4. Step 4: Simplify right side
    620,496,744.60x = 289,621,662,631,537,728
  5. Step 5: Solve for x
    x = 289,621,662,631,537,728/620,496,744.60
  6. Step 6: Final answer
    x = 466,757,747.16

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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.