Home / 100,900,790.15-139,243,085.07-54,491,039.60

Finding the Fourth Proportional to 100,900,790.15, 139,243,085.07 and 54,491,039.60

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Solution

The fourth proportional to 100,900,790.15, 139,243,085.07 and 54,491,039.60 is: 75,197,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,900,790.15 : 139,243,085.07 = 54,491,039.60 : x
  2. Step 2: Convert to fraction form
    100,900,790.15/139,243,085.07 = 54,491,039.60/x
  3. Step 3: Cross multiply
    100,900,790.15x = 139,243,085.07 × 54,491,039.60
  4. Step 4: Simplify right side
    100,900,790.15x = 7,587,500,462,575,539
  5. Step 5: Solve for x
    x = 7,587,500,462,575,539/100,900,790.15
  6. Step 6: Final answer
    x = 75,197,631.77

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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.