Home / 478,509,531.90-660,326,829.21-263,936,679.75

Finding the Fourth Proportional to 478,509,531.90, 660,326,829.21 and 263,936,679.75

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Solution

The fourth proportional to 478,509,531.90, 660,326,829.21 and 263,936,679.75 is: 364,223,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,509,531.90 : 660,326,829.21 = 263,936,679.75 : x
  2. Step 2: Convert to fraction form
    478,509,531.90/660,326,829.21 = 263,936,679.75/x
  3. Step 3: Cross multiply
    478,509,531.90x = 660,326,829.21 × 263,936,679.75
  4. Step 4: Simplify right side
    478,509,531.90x = 174,284,470,851,532,736
  5. Step 5: Solve for x
    x = 174,284,470,851,532,736/478,509,531.90
  6. Step 6: Final answer
    x = 364,223,613.60

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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.