Home / 139,824,015.40-209,736,023.10-88,931,650.60

Finding the Fourth Proportional to 139,824,015.40, 209,736,023.10 and 88,931,650.60

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Solution

The fourth proportional to 139,824,015.40, 209,736,023.10 and 88,931,650.60 is: 133,397,475.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,824,015.40 : 209,736,023.10 = 88,931,650.60 : x
  2. Step 2: Convert to fraction form
    139,824,015.40/209,736,023.10 = 88,931,650.60/x
  3. Step 3: Cross multiply
    139,824,015.40x = 209,736,023.10 × 88,931,650.60
  4. Step 4: Simplify right side
    139,824,015.40x = 18,652,170,724,562,728
  5. Step 5: Solve for x
    x = 18,652,170,724,562,728/139,824,015.40
  6. Step 6: Final answer
    x = 133,397,475.90

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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.