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Finding the Fourth Proportional to 525,333,007.08, 724,959,708.66 and 287,179,227.36

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Solution

The fourth proportional to 525,333,007.08, 724,959,708.66 and 287,179,227.36 is: 396,307,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,333,007.08 : 724,959,708.66 = 287,179,227.36 : x
  2. Step 2: Convert to fraction form
    525,333,007.08/724,959,708.66 = 287,179,227.36/x
  3. Step 3: Cross multiply
    525,333,007.08x = 724,959,708.66 × 287,179,227.36
  4. Step 4: Simplify right side
    525,333,007.08x = 208,193,369,000,109,504
  5. Step 5: Solve for x
    x = 208,193,369,000,109,504/525,333,007.08
  6. Step 6: Final answer
    x = 396,307,420.62

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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.