Home / 20,313,991.77-30,453,051.13-15,542,980.19

Finding the Fourth Proportional to 20,313,991.77, 30,453,051.13 and 15,542,980.19

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Solution

The fourth proportional to 20,313,991.77, 30,453,051.13 and 15,542,980.19 is: 23,300,746.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313,991.77 : 30,453,051.13 = 15,542,980.19 : x
  2. Step 2: Convert to fraction form
    20,313,991.77/30,453,051.13 = 15,542,980.19/x
  3. Step 3: Cross multiply
    20,313,991.77x = 30,453,051.13 × 15,542,980.19
  4. Step 4: Simplify right side
    20,313,991.77x = 473,331,170,533,021.81
  5. Step 5: Solve for x
    x = 473,331,170,533,021.81/20,313,991.77
  6. Step 6: Final answer
    x = 23,300,746.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.