Home / 198,288,050.18-297,432,075.27-120,689,790.98

Finding the Fourth Proportional to 198,288,050.18, 297,432,075.27 and 120,689,790.98

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Solution

The fourth proportional to 198,288,050.18, 297,432,075.27 and 120,689,790.98 is: 181,034,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,288,050.18 : 297,432,075.27 = 120,689,790.98 : x
  2. Step 2: Convert to fraction form
    198,288,050.18/297,432,075.27 = 120,689,790.98/x
  3. Step 3: Cross multiply
    198,288,050.18x = 297,432,075.27 × 120,689,790.98
  4. Step 4: Simplify right side
    198,288,050.18x = 35,897,014,993,596,764
  5. Step 5: Solve for x
    x = 35,897,014,993,596,764/198,288,050.18
  6. Step 6: Final answer
    x = 181,034,686.47

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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.