Home / 531,877,932.81-734,187,410.27-320,194,602.51

Finding the Fourth Proportional to 531,877,932.81, 734,187,410.27 and 320,194,602.51

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Solution

The fourth proportional to 531,877,932.81, 734,187,410.27 and 320,194,602.51 is: 441,986,462.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,877,932.81 : 734,187,410.27 = 320,194,602.51 : x
  2. Step 2: Convert to fraction form
    531,877,932.81/734,187,410.27 = 320,194,602.51/x
  3. Step 3: Cross multiply
    531,877,932.81x = 734,187,410.27 × 320,194,602.51
  4. Step 4: Simplify right side
    531,877,932.81x = 235,082,845,997,647,968
  5. Step 5: Solve for x
    x = 235,082,845,997,647,968/531,877,932.81
  6. Step 6: Final answer
    x = 441,986,462.49

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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.