Home / 139,670,645,266.80-209,505,967,900.20-40,300,531,628.40

Finding the Fourth Proportional to 139,670,645,266.80, 209,505,967,900.20 and 40,300,531,628.40

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Solution

The fourth proportional to 139,670,645,266.80, 209,505,967,900.20 and 40,300,531,628.40 is: 60,450,797,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,670,645,266.80 : 209,505,967,900.20 = 40,300,531,628.40 : x
  2. Step 2: Convert to fraction form
    139,670,645,266.80/209,505,967,900.20 = 40,300,531,628.40/x
  3. Step 3: Cross multiply
    139,670,645,266.80x = 209,505,967,900.20 × 40,300,531,628.40
  4. Step 4: Simplify right side
    139,670,645,266.80x = 8,443,201,885,700,565,762,048
  5. Step 5: Solve for x
    x = 8,443,201,885,700,565,762,048/139,670,645,266.80
  6. Step 6: Final answer
    x = 60,450,797,442.60

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1.5x scale

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.