Home / 151,783,485.79-209,461,280.46-82,168,866.67

Finding the Fourth Proportional to 151,783,485.79, 209,461,280.46 and 82,168,866.67

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Solution

The fourth proportional to 151,783,485.79, 209,461,280.46 and 82,168,866.67 is: 113,393,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,783,485.79 : 209,461,280.46 = 82,168,866.67 : x
  2. Step 2: Convert to fraction form
    151,783,485.79/209,461,280.46 = 82,168,866.67/x
  3. Step 3: Cross multiply
    151,783,485.79x = 209,461,280.46 × 82,168,866.67
  4. Step 4: Simplify right side
    151,783,485.79x = 17,211,196,025,597,912
  5. Step 5: Solve for x
    x = 17,211,196,025,597,912/151,783,485.79
  6. Step 6: Final answer
    x = 113,393,073.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.