Home / 70,057,289.88-105,095,963.97-21,539,217.60

Finding the Fourth Proportional to 70,057,289.88, 105,095,963.97 and 21,539,217.60

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Solution

The fourth proportional to 70,057,289.88, 105,095,963.97 and 21,539,217.60 is: 32,311,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,057,289.88 : 105,095,963.97 = 21,539,217.60 : x
  2. Step 2: Convert to fraction form
    70,057,289.88/105,095,963.97 = 21,539,217.60/x
  3. Step 3: Cross multiply
    70,057,289.88x = 105,095,963.97 × 21,539,217.60
  4. Step 4: Simplify right side
    70,057,289.88x = 2,263,684,836,831,590
  5. Step 5: Solve for x
    x = 2,263,684,836,831,590/70,057,289.88
  6. Step 6: Final answer
    x = 32,311,909.88

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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.