Home / 1,080,978,876.36-1,620,885,011.94-490,446,810.36

Finding the Fourth Proportional to 1,080,978,876.36, 1,620,885,011.94 and 490,446,810.36

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Solution

The fourth proportional to 1,080,978,876.36, 1,620,885,011.94 and 490,446,810.36 is: 735,405,567.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,978,876.36 : 1,620,885,011.94 = 490,446,810.36 : x
  2. Step 2: Convert to fraction form
    1,080,978,876.36/1,620,885,011.94 = 490,446,810.36/x
  3. Step 3: Cross multiply
    1,080,978,876.36x = 1,620,885,011.94 × 490,446,810.36
  4. Step 4: Simplify right side
    1,080,978,876.36x = 794,957,884,066,303,616
  5. Step 5: Solve for x
    x = 794,957,884,066,303,616/1,080,978,876.36
  6. Step 6: Final answer
    x = 735,405,567.54

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1.5x scale

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.