Home / 66,126,768,868.37-91,252,312,609.21-39,038,769,016.52

Finding the Fourth Proportional to 66,126,768,868.37, 91,252,312,609.21 and 39,038,769,016.52

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Solution

The fourth proportional to 66,126,768,868.37, 91,252,312,609.21 and 39,038,769,016.52 is: 53,871,949,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,126,768,868.37 : 91,252,312,609.21 = 39,038,769,016.52 : x
  2. Step 2: Convert to fraction form
    66,126,768,868.37/91,252,312,609.21 = 39,038,769,016.52/x
  3. Step 3: Cross multiply
    66,126,768,868.37x = 91,252,312,609.21 × 39,038,769,016.52
  4. Step 4: Simplify right side
    66,126,768,868.37x = 3,562,377,954,173,689,790,464
  5. Step 5: Solve for x
    x = 3,562,377,954,173,689,790,464/66,126,768,868.37
  6. Step 6: Final answer
    x = 53,871,949,516.61

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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.