Home / 57,078,267.49-78,638,729.88-54,357,289.57

Finding the Fourth Proportional to 57,078,267.49, 78,638,729.88 and 54,357,289.57

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Solution

The fourth proportional to 57,078,267.49, 78,638,729.88 and 54,357,289.57 is: 74,889,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,078,267.49 : 78,638,729.88 = 54,357,289.57 : x
  2. Step 2: Convert to fraction form
    57,078,267.49/78,638,729.88 = 54,357,289.57/x
  3. Step 3: Cross multiply
    57,078,267.49x = 78,638,729.88 × 54,357,289.57
  4. Step 4: Simplify right side
    57,078,267.49x = 4,274,588,211,504,171
  5. Step 5: Solve for x
    x = 4,274,588,211,504,171/57,078,267.49
  6. Step 6: Final answer
    x = 74,889,943.22

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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.