Home / 198,288,001.80-297,432,002.70-61,987,163.40

Finding the Fourth Proportional to 198,288,001.80, 297,432,002.70 and 61,987,163.40

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Solution

The fourth proportional to 198,288,001.80, 297,432,002.70 and 61,987,163.40 is: 92,980,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,288,001.80 : 297,432,002.70 = 61,987,163.40 : x
  2. Step 2: Convert to fraction form
    198,288,001.80/297,432,002.70 = 61,987,163.40/x
  3. Step 3: Cross multiply
    198,288,001.80x = 297,432,002.70 × 61,987,163.40
  4. Step 4: Simplify right side
    198,288,001.80x = 18,436,966,151,754,140
  5. Step 5: Solve for x
    x = 18,436,966,151,754,140/198,288,001.80
  6. Step 6: Final answer
    x = 92,980,745.10

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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.