Home / 145,467,625.20-218,201,437.80-90,941,778.60

Finding the Fourth Proportional to 145,467,625.20, 218,201,437.80 and 90,941,778.60

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Solution

The fourth proportional to 145,467,625.20, 218,201,437.80 and 90,941,778.60 is: 136,412,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,467,625.20 : 218,201,437.80 = 90,941,778.60 : x
  2. Step 2: Convert to fraction form
    145,467,625.20/218,201,437.80 = 90,941,778.60/x
  3. Step 3: Cross multiply
    145,467,625.20x = 218,201,437.80 × 90,941,778.60
  4. Step 4: Simplify right side
    145,467,625.20x = 19,843,626,846,609,272
  5. Step 5: Solve for x
    x = 19,843,626,846,609,272/145,467,625.20
  6. Step 6: Final answer
    x = 136,412,667.90

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1.5x scale

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.