Home / 70,589,148.88-105,792,180.36-31,698,884.56

Finding the Fourth Proportional to 70,589,148.88, 105,792,180.36 and 31,698,884.56

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Solution

The fourth proportional to 70,589,148.88, 105,792,180.36 and 31,698,884.56 is: 47,507,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,589,148.88 : 105,792,180.36 = 31,698,884.56 : x
  2. Step 2: Convert to fraction form
    70,589,148.88/105,792,180.36 = 31,698,884.56/x
  3. Step 3: Cross multiply
    70,589,148.88x = 105,792,180.36 × 31,698,884.56
  4. Step 4: Simplify right side
    70,589,148.88x = 3,353,494,112,582,339
  5. Step 5: Solve for x
    x = 3,353,494,112,582,339/70,589,148.88
  6. Step 6: Final answer
    x = 47,507,218.40

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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.