Home / 920,670,933.49-1,381,879,491.44-569,855,816.60

Finding the Fourth Proportional to 920,670,933.49, 1,381,879,491.44 and 569,855,816.60

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Solution

The fourth proportional to 920,670,933.49, 1,381,879,491.44 and 569,855,816.60 is: 855,324,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,670,933.49 : 1,381,879,491.44 = 569,855,816.60 : x
  2. Step 2: Convert to fraction form
    920,670,933.49/1,381,879,491.44 = 569,855,816.60/x
  3. Step 3: Cross multiply
    920,670,933.49x = 1,381,879,491.44 × 569,855,816.60
  4. Step 4: Simplify right side
    920,670,933.49x = 787,472,066,027,575,296
  5. Step 5: Solve for x
    x = 787,472,066,027,575,296/920,670,933.49
  6. Step 6: Final answer
    x = 855,324,130.90

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1.5x scale

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.