Home / 644,547,425.31-967,009,799.21-207,839,326.41

Finding the Fourth Proportional to 644,547,425.31, 967,009,799.21 and 207,839,326.41

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Solution

The fourth proportional to 644,547,425.31, 967,009,799.21 and 207,839,326.41 is: 311,819,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,547,425.31 : 967,009,799.21 = 207,839,326.41 : x
  2. Step 2: Convert to fraction form
    644,547,425.31/967,009,799.21 = 207,839,326.41/x
  3. Step 3: Cross multiply
    644,547,425.31x = 967,009,799.21 × 207,839,326.41
  4. Step 4: Simplify right side
    644,547,425.31x = 200,982,665,298,636,544
  5. Step 5: Solve for x
    x = 200,982,665,298,636,544/644,547,425.31
  6. Step 6: Final answer
    x = 311,819,824.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.