Home / 154,246,647.18-212,864,290.54-84,632,009.60

Finding the Fourth Proportional to 154,246,647.18, 212,864,290.54 and 84,632,009.60

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Solution

The fourth proportional to 154,246,647.18, 212,864,290.54 and 84,632,009.60 is: 116,794,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,246,647.18 : 212,864,290.54 = 84,632,009.60 : x
  2. Step 2: Convert to fraction form
    154,246,647.18/212,864,290.54 = 84,632,009.60/x
  3. Step 3: Cross multiply
    154,246,647.18x = 212,864,290.54 × 84,632,009.60
  4. Step 4: Simplify right side
    154,246,647.18x = 18,015,132,680,478,468
  5. Step 5: Solve for x
    x = 18,015,132,680,478,468/154,246,647.18
  6. Step 6: Final answer
    x = 116,794,322.66

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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.