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Finding the Fourth Proportional to 478,509,491.04, 660,326,772.04 and 263,936,638.86

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Solution

The fourth proportional to 478,509,491.04, 660,326,772.04 and 263,936,638.86 is: 364,223,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,509,491.04 : 660,326,772.04 = 263,936,638.86 : x
  2. Step 2: Convert to fraction form
    478,509,491.04/660,326,772.04 = 263,936,638.86/x
  3. Step 3: Cross multiply
    478,509,491.04x = 660,326,772.04 × 263,936,638.86
  4. Step 4: Simplify right side
    478,509,491.04x = 174,284,428,761,511,040
  5. Step 5: Solve for x
    x = 174,284,428,761,511,040/478,509,491.04
  6. Step 6: Final answer
    x = 364,223,556.74

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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.