Home / 139,968,138.80-209,952,208.20-88,907,812.40

Finding the Fourth Proportional to 139,968,138.80, 209,952,208.20 and 88,907,812.40

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Solution

The fourth proportional to 139,968,138.80, 209,952,208.20 and 88,907,812.40 is: 133,361,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,138.80 : 209,952,208.20 = 88,907,812.40 : x
  2. Step 2: Convert to fraction form
    139,968,138.80/209,952,208.20 = 88,907,812.40/x
  3. Step 3: Cross multiply
    139,968,138.80x = 209,952,208.20 × 88,907,812.40
  4. Step 4: Simplify right side
    139,968,138.80x = 18,666,391,539,611,340
  5. Step 5: Solve for x
    x = 18,666,391,539,611,340/139,968,138.80
  6. Step 6: Final answer
    x = 133,361,718.60

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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.