Home / 351,996,782.51-485,780,111.82-232,712,128.01

Finding the Fourth Proportional to 351,996,782.51, 485,780,111.82 and 232,712,128.01

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Solution

The fourth proportional to 351,996,782.51, 485,780,111.82 and 232,712,128.01 is: 321,158,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,996,782.51 : 485,780,111.82 = 232,712,128.01 : x
  2. Step 2: Convert to fraction form
    351,996,782.51/485,780,111.82 = 232,712,128.01/x
  3. Step 3: Cross multiply
    351,996,782.51x = 485,780,111.82 × 232,712,128.01
  4. Step 4: Simplify right side
    351,996,782.51x = 113,046,923,564,139,056
  5. Step 5: Solve for x
    x = 113,046,923,564,139,056/351,996,782.51
  6. Step 6: Final answer
    x = 321,158,968.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.