Home / 380,446,398.90-525,016,107.27-231,767,475.03

Finding the Fourth Proportional to 380,446,398.90, 525,016,107.27 and 231,767,475.03

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Solution

The fourth proportional to 380,446,398.90, 525,016,107.27 and 231,767,475.03 is: 319,839,162.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,446,398.90 : 525,016,107.27 = 231,767,475.03 : x
  2. Step 2: Convert to fraction form
    380,446,398.90/525,016,107.27 = 231,767,475.03/x
  3. Step 3: Cross multiply
    380,446,398.90x = 525,016,107.27 × 231,767,475.03
  4. Step 4: Simplify right side
    380,446,398.90x = 121,681,657,532,047,520
  5. Step 5: Solve for x
    x = 121,681,657,532,047,520/380,446,398.90
  6. Step 6: Final answer
    x = 319,839,162.32

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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.