Home / 77,512,825.88-116,265,373.98-28,987,112.20

Finding the Fourth Proportional to 77,512,825.88, 116,265,373.98 and 28,987,112.20

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Solution

The fourth proportional to 77,512,825.88, 116,265,373.98 and 28,987,112.20 is: 43,479,222.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,512,825.88 : 116,265,373.98 = 28,987,112.20 : x
  2. Step 2: Convert to fraction form
    77,512,825.88/116,265,373.98 = 28,987,112.20/x
  3. Step 3: Cross multiply
    77,512,825.88x = 116,265,373.98 × 28,987,112.20
  4. Step 4: Simplify right side
    77,512,825.88x = 3,370,197,440,533,220.50
  5. Step 5: Solve for x
    x = 3,370,197,440,533,220.50/77,512,825.88
  6. Step 6: Final answer
    x = 43,479,222.98

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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.