Home / 421,236,507.00-631,940,939.34-144,851,826.05

Finding the Fourth Proportional to 421,236,507.00, 631,940,939.34 and 144,851,826.05

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Solution

The fourth proportional to 421,236,507.00, 631,940,939.34 and 144,851,826.05 is: 217,307,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,236,507.00 : 631,940,939.34 = 144,851,826.05 : x
  2. Step 2: Convert to fraction form
    421,236,507.00/631,940,939.34 = 144,851,826.05/x
  3. Step 3: Cross multiply
    421,236,507.00x = 631,940,939.34 × 144,851,826.05
  4. Step 4: Simplify right side
    421,236,507.00x = 91,537,799,018,629,344
  5. Step 5: Solve for x
    x = 91,537,799,018,629,344/421,236,507.00
  6. Step 6: Final answer
    x = 217,307,373.64

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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.