Home / 139,968,217.20-209,952,325.80-88,886,895.60

Finding the Fourth Proportional to 139,968,217.20, 209,952,325.80 and 88,886,895.60

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Solution

The fourth proportional to 139,968,217.20, 209,952,325.80 and 88,886,895.60 is: 133,330,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,217.20 : 209,952,325.80 = 88,886,895.60 : x
  2. Step 2: Convert to fraction form
    139,968,217.20/209,952,325.80 = 88,886,895.60/x
  3. Step 3: Cross multiply
    139,968,217.20x = 209,952,325.80 × 88,886,895.60
  4. Step 4: Simplify right side
    139,968,217.20x = 18,662,010,464,361,788
  5. Step 5: Solve for x
    x = 18,662,010,464,361,788/139,968,217.20
  6. Step 6: Final answer
    x = 133,330,343.40

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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.