Home / 151,783,518.85-209,461,326.51-82,168,899.64

Finding the Fourth Proportional to 151,783,518.85, 209,461,326.51 and 82,168,899.64

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Solution

The fourth proportional to 151,783,518.85, 209,461,326.51 and 82,168,899.64 is: 113,393,119.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,783,518.85 : 209,461,326.51 = 82,168,899.64 : x
  2. Step 2: Convert to fraction form
    151,783,518.85/209,461,326.51 = 82,168,899.64/x
  3. Step 3: Cross multiply
    151,783,518.85x = 209,461,326.51 × 82,168,899.64
  4. Step 4: Simplify right side
    151,783,518.85x = 17,211,206,716,461,460
  5. Step 5: Solve for x
    x = 17,211,206,716,461,460/151,783,518.85
  6. Step 6: Final answer
    x = 113,393,119.67

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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.