Home / 1,018,796,556.20-1,405,930,796.06-572,761,907.66

Finding the Fourth Proportional to 1,018,796,556.20, 1,405,930,796.06 and 572,761,907.66

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Solution

The fourth proportional to 1,018,796,556.20, 1,405,930,796.06 and 572,761,907.66 is: 790,406,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,796,556.20 : 1,405,930,796.06 = 572,761,907.66 : x
  2. Step 2: Convert to fraction form
    1,018,796,556.20/1,405,930,796.06 = 572,761,907.66/x
  3. Step 3: Cross multiply
    1,018,796,556.20x = 1,405,930,796.06 × 572,761,907.66
  4. Step 4: Simplify right side
    1,018,796,556.20x = 805,263,604,789,919,104
  5. Step 5: Solve for x
    x = 805,263,604,789,919,104/1,018,796,556.20
  6. Step 6: Final answer
    x = 790,406,681.19

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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.