Home / 145,158,512.40-218,062,171.80-121,270,640.40

Finding the Fourth Proportional to 145,158,512.40, 218,062,171.80 and 121,270,640.40

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Solution

The fourth proportional to 145,158,512.40, 218,062,171.80 and 121,270,640.40 is: 182,176,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,158,512.40 : 218,062,171.80 = 121,270,640.40 : x
  2. Step 2: Convert to fraction form
    145,158,512.40/218,062,171.80 = 121,270,640.40/x
  3. Step 3: Cross multiply
    145,158,512.40x = 218,062,171.80 × 121,270,640.40
  4. Step 4: Simplify right side
    145,158,512.40x = 26,444,539,221,200,824
  5. Step 5: Solve for x
    x = 26,444,539,221,200,824/145,158,512.40
  6. Step 6: Final answer
    x = 182,176,978.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.