Home / 77,112,007.80-115,668,011.70-33,958,998.60

Finding the Fourth Proportional to 77,112,007.80, 115,668,011.70 and 33,958,998.60

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Solution

The fourth proportional to 77,112,007.80, 115,668,011.70 and 33,958,998.60 is: 50,938,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,112,007.80 : 115,668,011.70 = 33,958,998.60 : x
  2. Step 2: Convert to fraction form
    77,112,007.80/115,668,011.70 = 33,958,998.60/x
  3. Step 3: Cross multiply
    77,112,007.80x = 115,668,011.70 × 33,958,998.60
  4. Step 4: Simplify right side
    77,112,007.80x = 3,927,969,847,385,084
  5. Step 5: Solve for x
    x = 3,927,969,847,385,084/77,112,007.80
  6. Step 6: Final answer
    x = 50,938,497.90

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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.