Home / 13,353,656.85-18,428,046.45-7,242,085.35

Finding the Fourth Proportional to 13,353,656.85, 18,428,046.45 and 7,242,085.35

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Solution

The fourth proportional to 13,353,656.85, 18,428,046.45 and 7,242,085.35 is: 9,994,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353,656.85 : 18,428,046.45 = 7,242,085.35 : x
  2. Step 2: Convert to fraction form
    13,353,656.85/18,428,046.45 = 7,242,085.35/x
  3. Step 3: Cross multiply
    13,353,656.85x = 18,428,046.45 × 7,242,085.35
  4. Step 4: Simplify right side
    13,353,656.85x = 133,457,485,096,313.84
  5. Step 5: Solve for x
    x = 133,457,485,096,313.84/13,353,656.85
  6. Step 6: Final answer
    x = 9,994,077.78

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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.