Home / 155,046,028.22-213,973,075.24-85,431,398.30

Finding the Fourth Proportional to 155,046,028.22, 213,973,075.24 and 85,431,398.30

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Solution

The fourth proportional to 155,046,028.22, 213,973,075.24 and 85,431,398.30 is: 117,900,595.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,046,028.22 : 213,973,075.24 = 85,431,398.30 : x
  2. Step 2: Convert to fraction form
    155,046,028.22/213,973,075.24 = 85,431,398.30/x
  3. Step 3: Cross multiply
    155,046,028.22x = 213,973,075.24 × 85,431,398.30
  4. Step 4: Simplify right side
    155,046,028.22x = 18,280,019,016,304,308
  5. Step 5: Solve for x
    x = 18,280,019,016,304,308/155,046,028.22
  6. Step 6: Final answer
    x = 117,900,595.24

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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.