Home / 147,501,076.80-221,251,615.20-90,105,448.80

Finding the Fourth Proportional to 147,501,076.80, 221,251,615.20 and 90,105,448.80

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Solution

The fourth proportional to 147,501,076.80, 221,251,615.20 and 90,105,448.80 is: 135,158,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,501,076.80 : 221,251,615.20 = 90,105,448.80 : x
  2. Step 2: Convert to fraction form
    147,501,076.80/221,251,615.20 = 90,105,448.80/x
  3. Step 3: Cross multiply
    147,501,076.80x = 221,251,615.20 × 90,105,448.80
  4. Step 4: Simplify right side
    147,501,076.80x = 19,935,976,085,320,900
  5. Step 5: Solve for x
    x = 19,935,976,085,320,900/147,501,076.80
  6. Step 6: Final answer
    x = 135,158,173.20

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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.