Home / 313,539,958.25-432,686,824.80-172,420,278.59

Finding the Fourth Proportional to 313,539,958.25, 432,686,824.80 and 172,420,278.59

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Solution

The fourth proportional to 313,539,958.25, 432,686,824.80 and 172,420,278.59 is: 237,940,909.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,539,958.25 : 432,686,824.80 = 172,420,278.59 : x
  2. Step 2: Convert to fraction form
    313,539,958.25/432,686,824.80 = 172,420,278.59/x
  3. Step 3: Cross multiply
    313,539,958.25x = 432,686,824.80 × 172,420,278.59
  4. Step 4: Simplify right side
    313,539,958.25x = 74,603,982,874,238,528
  5. Step 5: Solve for x
    x = 74,603,982,874,238,528/313,539,958.25
  6. Step 6: Final answer
    x = 237,940,909.64

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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.