Home / 716,559,932.54-988,820,899.90-399,036,556.46

Finding the Fourth Proportional to 716,559,932.54, 988,820,899.90 and 399,036,556.46

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Solution

The fourth proportional to 716,559,932.54, 988,820,899.90 and 399,036,556.46 is: 550,652,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,559,932.54 : 988,820,899.90 = 399,036,556.46 : x
  2. Step 2: Convert to fraction form
    716,559,932.54/988,820,899.90 = 399,036,556.46/x
  3. Step 3: Cross multiply
    716,559,932.54x = 988,820,899.90 × 399,036,556.46
  4. Step 4: Simplify right side
    716,559,932.54x = 394,575,686,853,248,832
  5. Step 5: Solve for x
    x = 394,575,686,853,248,832/716,559,932.54
  6. Step 6: Final answer
    x = 550,652,735.29

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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.