Home / 153,196,135.40-211,410,378.96-83,581,563.44

Finding the Fourth Proportional to 153,196,135.40, 211,410,378.96 and 83,581,563.44

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Solution

The fourth proportional to 153,196,135.40, 211,410,378.96 and 83,581,563.44 is: 115,342,400.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,196,135.40 : 211,410,378.96 = 83,581,563.44 : x
  2. Step 2: Convert to fraction form
    153,196,135.40/211,410,378.96 = 83,581,563.44/x
  3. Step 3: Cross multiply
    153,196,135.40x = 211,410,378.96 × 83,581,563.44
  4. Step 4: Simplify right side
    153,196,135.40x = 17,670,010,000,919,682
  5. Step 5: Solve for x
    x = 17,670,010,000,919,682/153,196,135.40
  6. Step 6: Final answer
    x = 115,342,400.48

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1.5x scale

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.