Home / 287,388,767.35-431,083,151.03-166,456,415.35

Finding the Fourth Proportional to 287,388,767.35, 431,083,151.03 and 166,456,415.35

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Solution

The fourth proportional to 287,388,767.35, 431,083,151.03 and 166,456,415.35 is: 249,684,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,388,767.35 : 431,083,151.03 = 166,456,415.35 : x
  2. Step 2: Convert to fraction form
    287,388,767.35/431,083,151.03 = 166,456,415.35/x
  3. Step 3: Cross multiply
    287,388,767.35x = 431,083,151.03 × 166,456,415.35
  4. Step 4: Simplify right side
    287,388,767.35x = 71,756,556,037,404,168
  5. Step 5: Solve for x
    x = 71,756,556,037,404,168/287,388,767.35
  6. Step 6: Final answer
    x = 249,684,623.03

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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.