Home / 39,188,946.40-54,082,133.72-21,549,191.47

Finding the Fourth Proportional to 39,188,946.40, 54,082,133.72 and 21,549,191.47

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Solution

The fourth proportional to 39,188,946.40, 54,082,133.72 and 21,549,191.47 is: 29,738,647.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188,946.40 : 54,082,133.72 = 21,549,191.47 : x
  2. Step 2: Convert to fraction form
    39,188,946.40/54,082,133.72 = 21,549,191.47/x
  3. Step 3: Cross multiply
    39,188,946.40x = 54,082,133.72 × 21,549,191.47
  4. Step 4: Simplify right side
    39,188,946.40x = 1,165,426,254,638,423.25
  5. Step 5: Solve for x
    x = 1,165,426,254,638,423.25/39,188,946.40
  6. Step 6: Final answer
    x = 29,738,647.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.