Home / 13,412,440.81-18,509,615.40-7,533,111.07

Finding the Fourth Proportional to 13,412,440.81, 18,509,615.40 and 7,533,111.07

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Solution

The fourth proportional to 13,412,440.81, 18,509,615.40 and 7,533,111.07 is: 10,395,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412,440.81 : 18,509,615.40 = 7,533,111.07 : x
  2. Step 2: Convert to fraction form
    13,412,440.81/18,509,615.40 = 7,533,111.07/x
  3. Step 3: Cross multiply
    13,412,440.81x = 18,509,615.40 × 7,533,111.07
  4. Step 4: Simplify right side
    13,412,440.81x = 139,434,988,659,004.28
  5. Step 5: Solve for x
    x = 139,434,988,659,004.28/13,412,440.81
  6. Step 6: Final answer
    x = 10,395,944.38

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1.5x scale

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.