Home / 81,604,986.40-122,407,479.60-70,976,166.40

Finding the Fourth Proportional to 81,604,986.40, 122,407,479.60 and 70,976,166.40

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Solution

The fourth proportional to 81,604,986.40, 122,407,479.60 and 70,976,166.40 is: 106,464,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,604,986.40 : 122,407,479.60 = 70,976,166.40 : x
  2. Step 2: Convert to fraction form
    81,604,986.40/122,407,479.60 = 70,976,166.40/x
  3. Step 3: Cross multiply
    81,604,986.40x = 122,407,479.60 × 70,976,166.40
  4. Step 4: Simplify right side
    81,604,986.40x = 8,688,013,640,694,206
  5. Step 5: Solve for x
    x = 8,688,013,640,694,206/81,604,986.40
  6. Step 6: Final answer
    x = 106,464,249.60

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1.5x scale

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.