Home / 13,066,081.32-18,030,720.18-7,185,664.68

Finding the Fourth Proportional to 13,066,081.32, 18,030,720.18 and 7,185,664.68

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Solution

The fourth proportional to 13,066,081.32, 18,030,720.18 and 7,185,664.68 is: 9,915,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066,081.32 : 18,030,720.18 = 7,185,664.68 : x
  2. Step 2: Convert to fraction form
    13,066,081.32/18,030,720.18 = 7,185,664.68/x
  3. Step 3: Cross multiply
    13,066,081.32x = 18,030,720.18 × 7,185,664.68
  4. Step 4: Simplify right side
    13,066,081.32x = 129,562,709,152,389.23
  5. Step 5: Solve for x
    x = 129,562,709,152,389.23/13,066,081.32
  6. Step 6: Final answer
    x = 9,915,957.66

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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.