Home / 638,479,801.31-881,101,736.08-345,124,369.31

Finding the Fourth Proportional to 638,479,801.31, 881,101,736.08 and 345,124,369.31

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Solution

The fourth proportional to 638,479,801.31, 881,101,736.08 and 345,124,369.31 is: 476,271,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,479,801.31 : 881,101,736.08 = 345,124,369.31 : x
  2. Step 2: Convert to fraction form
    638,479,801.31/881,101,736.08 = 345,124,369.31/x
  3. Step 3: Cross multiply
    638,479,801.31x = 881,101,736.08 × 345,124,369.31
  4. Step 4: Simplify right side
    638,479,801.31x = 304,089,680,957,287,744
  5. Step 5: Solve for x
    x = 304,089,680,957,287,744/638,479,801.31
  6. Step 6: Final answer
    x = 476,271,418.98

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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.