Home / 142,019,986.70-213,029,980.05-103,756,234.70

Finding the Fourth Proportional to 142,019,986.70, 213,029,980.05 and 103,756,234.70

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Solution

The fourth proportional to 142,019,986.70, 213,029,980.05 and 103,756,234.70 is: 155,634,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,019,986.70 : 213,029,980.05 = 103,756,234.70 : x
  2. Step 2: Convert to fraction form
    142,019,986.70/213,029,980.05 = 103,756,234.70/x
  3. Step 3: Cross multiply
    142,019,986.70x = 213,029,980.05 × 103,756,234.70
  4. Step 4: Simplify right side
    142,019,986.70x = 22,103,188,608,204,120
  5. Step 5: Solve for x
    x = 22,103,188,608,204,120/142,019,986.70
  6. Step 6: Final answer
    x = 155,634,352.05

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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.