Home / 131,362,709.20-197,044,063.80-82,989,768.40

Finding the Fourth Proportional to 131,362,709.20, 197,044,063.80 and 82,989,768.40

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Solution

The fourth proportional to 131,362,709.20, 197,044,063.80 and 82,989,768.40 is: 124,484,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,362,709.20 : 197,044,063.80 = 82,989,768.40 : x
  2. Step 2: Convert to fraction form
    131,362,709.20/197,044,063.80 = 82,989,768.40/x
  3. Step 3: Cross multiply
    131,362,709.20x = 197,044,063.80 × 82,989,768.40
  4. Step 4: Simplify right side
    131,362,709.20x = 16,352,641,219,356,826
  5. Step 5: Solve for x
    x = 16,352,641,219,356,826/131,362,709.20
  6. Step 6: Final answer
    x = 124,484,652.60

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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.