Home / 155,118,018.24-214,062,812.95-85,504,561.65

Finding the Fourth Proportional to 155,118,018.24, 214,062,812.95 and 85,504,561.65

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Solution

The fourth proportional to 155,118,018.24, 214,062,812.95 and 85,504,561.65 is: 117,996,266.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118,018.24 : 214,062,812.95 = 85,504,561.65 : x
  2. Step 2: Convert to fraction form
    155,118,018.24/214,062,812.95 = 85,504,561.65/x
  3. Step 3: Cross multiply
    155,118,018.24x = 214,062,812.95 × 85,504,561.65
  4. Step 4: Simplify right side
    155,118,018.24x = 18,303,346,986,855,692
  5. Step 5: Solve for x
    x = 18,303,346,986,855,692/155,118,018.24
  6. Step 6: Final answer
    x = 117,996,266.29

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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.