Home / 155,118,017.74-214,062,812.26-85,504,561.15

Finding the Fourth Proportional to 155,118,017.74, 214,062,812.26 and 85,504,561.15

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Solution

The fourth proportional to 155,118,017.74, 214,062,812.26 and 85,504,561.15 is: 117,996,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118,017.74 : 214,062,812.26 = 85,504,561.15 : x
  2. Step 2: Convert to fraction form
    155,118,017.74/214,062,812.26 = 85,504,561.15/x
  3. Step 3: Cross multiply
    155,118,017.74x = 214,062,812.26 × 85,504,561.15
  4. Step 4: Simplify right side
    155,118,017.74x = 18,303,346,820,826,140
  5. Step 5: Solve for x
    x = 18,303,346,820,826,140/155,118,017.74
  6. Step 6: Final answer
    x = 117,996,265.60

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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.