Home / 86,747,271.60-130,120,907.40-47,780,180.40

Finding the Fourth Proportional to 86,747,271.60, 130,120,907.40 and 47,780,180.40

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Solution

The fourth proportional to 86,747,271.60, 130,120,907.40 and 47,780,180.40 is: 71,670,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,747,271.60 : 130,120,907.40 = 47,780,180.40 : x
  2. Step 2: Convert to fraction form
    86,747,271.60/130,120,907.40 = 47,780,180.40/x
  3. Step 3: Cross multiply
    86,747,271.60x = 130,120,907.40 × 47,780,180.40
  4. Step 4: Simplify right side
    86,747,271.60x = 6,217,200,429,383,695
  5. Step 5: Solve for x
    x = 6,217,200,429,383,695/86,747,271.60
  6. Step 6: Final answer
    x = 71,670,270.60

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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.