Home / 621,517,012.80-932,387,493.60-258,048,110.40

Finding the Fourth Proportional to 621,517,012.80, 932,387,493.60 and 258,048,110.40

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Solution

The fourth proportional to 621,517,012.80, 932,387,493.60 and 258,048,110.40 is: 387,118,656.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,517,012.80 : 932,387,493.60 = 258,048,110.40 : x
  2. Step 2: Convert to fraction form
    621,517,012.80/932,387,493.60 = 258,048,110.40/x
  3. Step 3: Cross multiply
    621,517,012.80x = 932,387,493.60 × 258,048,110.40
  4. Step 4: Simplify right side
    621,517,012.80x = 240,600,830,884,072,096
  5. Step 5: Solve for x
    x = 240,600,830,884,072,096/621,517,012.80
  6. Step 6: Final answer
    x = 387,118,656.33

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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.