Home / 147,431,146.80-221,146,720.20-144,561,365.40

Finding the Fourth Proportional to 147,431,146.80, 221,146,720.20 and 144,561,365.40

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Solution

The fourth proportional to 147,431,146.80, 221,146,720.20 and 144,561,365.40 is: 216,842,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,431,146.80 : 221,146,720.20 = 144,561,365.40 : x
  2. Step 2: Convert to fraction form
    147,431,146.80/221,146,720.20 = 144,561,365.40/x
  3. Step 3: Cross multiply
    147,431,146.80x = 221,146,720.20 × 144,561,365.40
  4. Step 4: Simplify right side
    147,431,146.80x = 31,969,271,825,843,760
  5. Step 5: Solve for x
    x = 31,969,271,825,843,760/147,431,146.80
  6. Step 6: Final answer
    x = 216,842,048.10

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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.