Home / 13,313,533,733.28-18,372,686,457.10-7,209,933,671.48

Finding the Fourth Proportional to 13,313,533,733.28, 18,372,686,457.10 and 7,209,933,671.48

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Solution

The fourth proportional to 13,313,533,733.28, 18,372,686,457.10 and 7,209,933,671.48 is: 9,949,713,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313,533,733.28 : 18,372,686,457.10 = 7,209,933,671.48 : x
  2. Step 2: Convert to fraction form
    13,313,533,733.28/18,372,686,457.10 = 7,209,933,671.48/x
  3. Step 3: Cross multiply
    13,313,533,733.28x = 18,372,686,457.10 × 7,209,933,671.48
  4. Step 4: Simplify right side
    13,313,533,733.28x = 132,465,850,722,589,851,648
  5. Step 5: Solve for x
    x = 132,465,850,722,589,851,648/13,313,533,733.28
  6. Step 6: Final answer
    x = 9,949,713,830.78

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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.