Home / 57,078,266.49-78,638,728.50-54,357,288.57

Finding the Fourth Proportional to 57,078,266.49, 78,638,728.50 and 54,357,288.57

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Solution

The fourth proportional to 57,078,266.49, 78,638,728.50 and 54,357,288.57 is: 74,889,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,078,266.49 : 78,638,728.50 = 54,357,288.57 : x
  2. Step 2: Convert to fraction form
    57,078,266.49/78,638,728.50 = 54,357,288.57/x
  3. Step 3: Cross multiply
    57,078,266.49x = 78,638,728.50 × 54,357,288.57
  4. Step 4: Simplify right side
    57,078,266.49x = 4,274,588,057,852,383.50
  5. Step 5: Solve for x
    x = 4,274,588,057,852,383.50/57,078,266.49
  6. Step 6: Final answer
    x = 74,889,941.84

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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.