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Finding the Fourth Proportional to 603,290,766.84, 904,911,519.72 and 209,907,631.32

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Solution

The fourth proportional to 603,290,766.84, 904,911,519.72 and 209,907,631.32 is: 314,852,877.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,290,766.84 : 904,911,519.72 = 209,907,631.32 : x
  2. Step 2: Convert to fraction form
    603,290,766.84/904,911,519.72 = 209,907,631.32/x
  3. Step 3: Cross multiply
    603,290,766.84x = 904,911,519.72 × 209,907,631.32
  4. Step 4: Simplify right side
    603,290,766.84x = 189,947,833,658,606,656
  5. Step 5: Solve for x
    x = 189,947,833,658,606,656/603,290,766.84
  6. Step 6: Final answer
    x = 314,852,877.09

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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.