Home / 1,218,234,401,556.90-1,681,203,791,966.20-669,545,155,052.15

Finding the Fourth Proportional to 1,218,234,401,556.90, 1,681,203,791,966.20 and 669,545,155,052.15

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Solution

The fourth proportional to 1,218,234,401,556.90, 1,681,203,791,966.20 and 669,545,155,052.15 is: 923,994,472,761.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,234,401,556.90 : 1,681,203,791,966.20 = 669,545,155,052.15 : x
  2. Step 2: Convert to fraction form
    1,218,234,401,556.90/1,681,203,791,966.20 = 669,545,155,052.15/x
  3. Step 3: Cross multiply
    1,218,234,401,556.90x = 1,681,203,791,966.20 × 669,545,155,052.15
  4. Step 4: Simplify right side
    1,218,234,401,556.90x = 1,125,641,853,566,271,977,684,992
  5. Step 5: Solve for x
    x = 1,125,641,853,566,271,977,684,992/1,218,234,401,556.90
  6. Step 6: Final answer
    x = 923,994,472,761.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.