Home / 69,359,620.80-104,039,431.20-45,173,150.40

Finding the Fourth Proportional to 69,359,620.80, 104,039,431.20 and 45,173,150.40

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Solution

The fourth proportional to 69,359,620.80, 104,039,431.20 and 45,173,150.40 is: 67,759,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,359,620.80 : 104,039,431.20 = 45,173,150.40 : x
  2. Step 2: Convert to fraction form
    69,359,620.80/104,039,431.20 = 45,173,150.40/x
  3. Step 3: Cross multiply
    69,359,620.80x = 104,039,431.20 × 45,173,150.40
  4. Step 4: Simplify right side
    69,359,620.80x = 4,699,788,873,128,052
  5. Step 5: Solve for x
    x = 4,699,788,873,128,052/69,359,620.80
  6. Step 6: Final answer
    x = 67,759,725.60

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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.