Home / 139,958,401.20-209,937,601.80-88,877,079.60

Finding the Fourth Proportional to 139,958,401.20, 209,937,601.80 and 88,877,079.60

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Solution

The fourth proportional to 139,958,401.20, 209,937,601.80 and 88,877,079.60 is: 133,315,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,958,401.20 : 209,937,601.80 = 88,877,079.60 : x
  2. Step 2: Convert to fraction form
    139,958,401.20/209,937,601.80 = 88,877,079.60/x
  3. Step 3: Cross multiply
    139,958,401.20x = 209,937,601.80 × 88,877,079.60
  4. Step 4: Simplify right side
    139,958,401.20x = 18,658,640,946,211,704
  5. Step 5: Solve for x
    x = 18,658,640,946,211,704/139,958,401.20
  6. Step 6: Final answer
    x = 133,315,619.40

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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.