Finding the Fourth Proportional to 1,179,515,588.91, 1,768,236,980.94 and 480,595,441.74
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Solution
The fourth proportional to 1,179,515,588.91, 1,768,236,980.94 and 480,595,441.74 is: 720,470,878.85
Step by Step Solution
- Step 1: Write the proportion equation
1,179,515,588.91 : 1,768,236,980.94 = 480,595,441.74 : x - Step 2: Convert to fraction form
1,179,515,588.91/1,768,236,980.94 = 480,595,441.74/x - Step 3: Cross multiply
1,179,515,588.91x = 1,768,236,980.94 × 480,595,441.74 - Step 4: Simplify right side
1,179,515,588.91x = 849,806,632,955,863,296 - Step 5: Solve for x
x = 849,806,632,955,863,296/1,179,515,588.91 - Step 6: Final answer
x = 720,470,878.85
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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.