Home / 427,985,230.51-641,775,468.07-165,792,580.21

Finding the Fourth Proportional to 427,985,230.51, 641,775,468.07 and 165,792,580.21

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Solution

The fourth proportional to 427,985,230.51, 641,775,468.07 and 165,792,580.21 is: 248,610,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,985,230.51 : 641,775,468.07 = 165,792,580.21 : x
  2. Step 2: Convert to fraction form
    427,985,230.51/641,775,468.07 = 165,792,580.21/x
  3. Step 3: Cross multiply
    427,985,230.51x = 641,775,468.07 × 165,792,580.21
  4. Step 4: Simplify right side
    427,985,230.51x = 106,401,610,766,805,776
  5. Step 5: Solve for x
    x = 106,401,610,766,805,776/427,985,230.51
  6. Step 6: Final answer
    x = 248,610,473.40

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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.