Home / 124,339,968-171,589,155.84-72,831,744

Finding the Fourth Proportional to 124,339,968, 171,589,155.84 and 72,831,744

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Solution

The fourth proportional to 124,339,968, 171,589,155.84 and 72,831,744 is: 100,507,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,339,968 : 171,589,155.84 = 72,831,744 : x
  2. Step 2: Convert to fraction form
    124,339,968/171,589,155.84 = 72,831,744/x
  3. Step 3: Cross multiply
    124,339,968x = 171,589,155.84 × 72,831,744
  4. Step 4: Simplify right side
    124,339,968x = 12,497,137,471,314,986
  5. Step 5: Solve for x
    x = 12,497,137,471,314,986/124,339,968
  6. Step 6: Final answer
    x = 100,507,806.72

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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.