Home / 28,219,141.45-42,328,712.18-9,051,836.05

Finding the Fourth Proportional to 28,219,141.45, 42,328,712.18 and 9,051,836.05

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Solution

The fourth proportional to 28,219,141.45, 42,328,712.18 and 9,051,836.05 is: 13,577,754.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219,141.45 : 42,328,712.18 = 9,051,836.05 : x
  2. Step 2: Convert to fraction form
    28,219,141.45/42,328,712.18 = 9,051,836.05/x
  3. Step 3: Cross multiply
    28,219,141.45x = 42,328,712.18 × 9,051,836.05
  4. Step 4: Simplify right side
    28,219,141.45x = 383,152,562,815,738.94
  5. Step 5: Solve for x
    x = 383,152,562,815,738.94/28,219,141.45
  6. Step 6: Final answer
    x = 13,577,754.08

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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.