Home / 13,169,242,655.80-18,173,568,314.72-7,147,749,300.86

Finding the Fourth Proportional to 13,169,242,655.80, 18,173,568,314.72 and 7,147,749,300.86

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Solution

The fourth proportional to 13,169,242,655.80, 18,173,568,314.72 and 7,147,749,300.86 is: 9,863,901,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169,242,655.80 : 18,173,568,314.72 = 7,147,749,300.86 : x
  2. Step 2: Convert to fraction form
    13,169,242,655.80/18,173,568,314.72 = 7,147,749,300.86/x
  3. Step 3: Cross multiply
    13,169,242,655.80x = 18,173,568,314.72 × 7,147,749,300.86
  4. Step 4: Simplify right side
    13,169,242,655.80x = 129,900,110,215,731,068,928
  5. Step 5: Solve for x
    x = 129,900,110,215,731,068,928/13,169,242,655.80
  6. Step 6: Final answer
    x = 9,863,901,335.17

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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.