Finding the Fourth Proportional to 652,855,812.80, 979,283,719.20 and 168,181,620.80
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Solution
The fourth proportional to 652,855,812.80, 979,283,719.20 and 168,181,620.80 is: 252,272,431.20
Step by Step Solution
- Step 1: Write the proportion equation
652,855,812.80 : 979,283,719.20 = 168,181,620.80 : x - Step 2: Convert to fraction form
652,855,812.80/979,283,719.20 = 168,181,620.80/x - Step 3: Cross multiply
652,855,812.80x = 979,283,719.20 × 168,181,620.80 - Step 4: Simplify right side
652,855,812.80x = 164,697,523,118,108,096 - Step 5: Solve for x
x = 164,697,523,118,108,096/652,855,812.80 - Step 6: Final answer
x = 252,272,431.20
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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.