Home / 69,011,712,078.40-103,517,568,117.60-68,323,741,364.80

Finding the Fourth Proportional to 69,011,712,078.40, 103,517,568,117.60 and 68,323,741,364.80

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Solution

The fourth proportional to 69,011,712,078.40, 103,517,568,117.60 and 68,323,741,364.80 is: 102,485,612,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,011,712,078.40 : 103,517,568,117.60 = 68,323,741,364.80 : x
  2. Step 2: Convert to fraction form
    69,011,712,078.40/103,517,568,117.60 = 68,323,741,364.80/x
  3. Step 3: Cross multiply
    69,011,712,078.40x = 103,517,568,117.60 × 68,323,741,364.80
  4. Step 4: Simplify right side
    69,011,712,078.40x = 7,072,707,550,779,969,372,160
  5. Step 5: Solve for x
    x = 7,072,707,550,779,969,372,160/69,011,712,078.40
  6. Step 6: Final answer
    x = 102,485,612,047.20

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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.