Home / 13,313,533,729.77-18,372,686,452.26-7,209,933,667.98

Finding the Fourth Proportional to 13,313,533,729.77, 18,372,686,452.26 and 7,209,933,667.98

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Solution

The fourth proportional to 13,313,533,729.77, 18,372,686,452.26 and 7,209,933,667.98 is: 9,949,713,825.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313,533,729.77 : 18,372,686,452.26 = 7,209,933,667.98 : x
  2. Step 2: Convert to fraction form
    13,313,533,729.77/18,372,686,452.26 = 7,209,933,667.98/x
  3. Step 3: Cross multiply
    13,313,533,729.77x = 18,372,686,452.26 × 7,209,933,667.98
  4. Step 4: Simplify right side
    13,313,533,729.77x = 132,465,850,623,389,368,320
  5. Step 5: Solve for x
    x = 132,465,850,623,389,368,320/13,313,533,729.77
  6. Step 6: Final answer
    x = 9,949,713,825.95

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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.