Home / 57,078,268.49-78,638,731.26-54,357,290.57

Finding the Fourth Proportional to 57,078,268.49, 78,638,731.26 and 54,357,290.57

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Solution

The fourth proportional to 57,078,268.49, 78,638,731.26 and 54,357,290.57 is: 74,889,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,078,268.49 : 78,638,731.26 = 54,357,290.57 : x
  2. Step 2: Convert to fraction form
    57,078,268.49/78,638,731.26 = 54,357,290.57/x
  3. Step 3: Cross multiply
    57,078,268.49x = 78,638,731.26 × 54,357,290.57
  4. Step 4: Simplify right side
    57,078,268.49x = 4,274,588,365,155,962.50
  5. Step 5: Solve for x
    x = 4,274,588,365,155,962.50/57,078,268.49
  6. Step 6: Final answer
    x = 74,889,944.60

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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.