Home / 72,669,698,911.80-109,004,548,367.70-71,037,112,159.80

Finding the Fourth Proportional to 72,669,698,911.80, 109,004,548,367.70 and 71,037,112,159.80

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Solution

The fourth proportional to 72,669,698,911.80, 109,004,548,367.70 and 71,037,112,159.80 is: 106,555,668,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,669,698,911.80 : 109,004,548,367.70 = 71,037,112,159.80 : x
  2. Step 2: Convert to fraction form
    72,669,698,911.80/109,004,548,367.70 = 71,037,112,159.80/x
  3. Step 3: Cross multiply
    72,669,698,911.80x = 109,004,548,367.70 × 71,037,112,159.80
  4. Step 4: Simplify right side
    72,669,698,911.80x = 7,743,368,328,324,648,534,016
  5. Step 5: Solve for x
    x = 7,743,368,328,324,648,534,016/72,669,698,911.80
  6. Step 6: Final answer
    x = 106,555,668,239.70

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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.