Home / 160,610,843.45-221,644,292.57-87,271,985.45

Finding the Fourth Proportional to 160,610,843.45, 221,644,292.57 and 87,271,985.45

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Solution

The fourth proportional to 160,610,843.45, 221,644,292.57 and 87,271,985.45 is: 120,436,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,610,843.45 : 221,644,292.57 = 87,271,985.45 : x
  2. Step 2: Convert to fraction form
    160,610,843.45/221,644,292.57 = 87,271,985.45/x
  3. Step 3: Cross multiply
    160,610,843.45x = 221,644,292.57 × 87,271,985.45
  4. Step 4: Simplify right side
    160,610,843.45x = 19,343,337,474,700,000
  5. Step 5: Solve for x
    x = 19,343,337,474,700,000/160,610,843.45
  6. Step 6: Final answer
    x = 120,436,061.85

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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.