Home / 76,464,009.60-114,621,364.80-68,401,852.80

Finding the Fourth Proportional to 76,464,009.60, 114,621,364.80 and 68,401,852.80

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Solution

The fourth proportional to 76,464,009.60, 114,621,364.80 and 68,401,852.80 is: 102,536,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,464,009.60 : 114,621,364.80 = 68,401,852.80 : x
  2. Step 2: Convert to fraction form
    76,464,009.60/114,621,364.80 = 68,401,852.80/x
  3. Step 3: Cross multiply
    76,464,009.60x = 114,621,364.80 × 68,401,852.80
  4. Step 4: Simplify right side
    76,464,009.60x = 7,840,313,722,784,701
  5. Step 5: Solve for x
    x = 7,840,313,722,784,701/76,464,009.60
  6. Step 6: Final answer
    x = 102,536,000.45

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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.