Home / 68,342,543.40-102,364,515.90-53,076,700.20

Finding the Fourth Proportional to 68,342,543.40, 102,364,515.90 and 53,076,700.20

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Solution

The fourth proportional to 68,342,543.40, 102,364,515.90 and 53,076,700.20 is: 79,499,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,342,543.40 : 102,364,515.90 = 53,076,700.20 : x
  2. Step 2: Convert to fraction form
    68,342,543.40/102,364,515.90 = 53,076,700.20/x
  3. Step 3: Cross multiply
    68,342,543.40x = 102,364,515.90 × 53,076,700.20
  4. Step 4: Simplify right side
    68,342,543.40x = 5,433,170,721,542,434
  5. Step 5: Solve for x
    x = 5,433,170,721,542,434/68,342,543.40
  6. Step 6: Final answer
    x = 79,499,100.43

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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.