Home / 78,283,321.40-108,024,683.47-45,245,710.37

Finding the Fourth Proportional to 78,283,321.40, 108,024,683.47 and 45,245,710.37

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Solution

The fourth proportional to 78,283,321.40, 108,024,683.47 and 45,245,710.37 is: 62,435,439.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,283,321.40 : 108,024,683.47 = 45,245,710.37 : x
  2. Step 2: Convert to fraction form
    78,283,321.40/108,024,683.47 = 45,245,710.37/x
  3. Step 3: Cross multiply
    78,283,321.40x = 108,024,683.47 × 45,245,710.37
  4. Step 4: Simplify right side
    78,283,321.40x = 4,887,653,541,327,328
  5. Step 5: Solve for x
    x = 4,887,653,541,327,328/78,283,321.40
  6. Step 6: Final answer
    x = 62,435,439.04

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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.