Home / 1,031,075,919-1,422,916,017.12-561,211,216.20

Finding the Fourth Proportional to 1,031,075,919, 1,422,916,017.12 and 561,211,216.20

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Solution

The fourth proportional to 1,031,075,919, 1,422,916,017.12 and 561,211,216.20 is: 774,488,487.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,075,919 : 1,422,916,017.12 = 561,211,216.20 : x
  2. Step 2: Convert to fraction form
    1,031,075,919/1,422,916,017.12 = 561,211,216.20/x
  3. Step 3: Cross multiply
    1,031,075,919x = 1,422,916,017.12 × 561,211,216.20
  4. Step 4: Simplify right side
    1,031,075,919x = 798,556,428,518,375,168
  5. Step 5: Solve for x
    x = 798,556,428,518,375,168/1,031,075,919
  6. Step 6: Final answer
    x = 774,488,487.03

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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.