Home / 147,747,803.40-221,621,705.10-45,543,169.80

Finding the Fourth Proportional to 147,747,803.40, 221,621,705.10 and 45,543,169.80

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Solution

The fourth proportional to 147,747,803.40, 221,621,705.10 and 45,543,169.80 is: 68,314,754.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,747,803.40 : 221,621,705.10 = 45,543,169.80 : x
  2. Step 2: Convert to fraction form
    147,747,803.40/221,621,705.10 = 45,543,169.80/x
  3. Step 3: Cross multiply
    147,747,803.40x = 221,621,705.10 × 45,543,169.80
  4. Step 4: Simplify right side
    147,747,803.40x = 10,093,354,946,734,826
  5. Step 5: Solve for x
    x = 10,093,354,946,734,826/147,747,803.40
  6. Step 6: Final answer
    x = 68,314,754.70

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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.