Finding the Fourth Proportional to 425,316,844.20, 637,975,266.30 and 152,652,181.80
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Solution
The fourth proportional to 425,316,844.20, 637,975,266.30 and 152,652,181.80 is: 228,978,272.70
Step by Step Solution
- Step 1: Write the proportion equation
425,316,844.20 : 637,975,266.30 = 152,652,181.80 : x - Step 2: Convert to fraction form
425,316,844.20/637,975,266.30 = 152,652,181.80/x - Step 3: Cross multiply
425,316,844.20x = 637,975,266.30 × 152,652,181.80 - Step 4: Simplify right side
425,316,844.20x = 97,388,316,335,131,008 - Step 5: Solve for x
x = 97,388,316,335,131,008/425,316,844.20 - Step 6: Final answer
x = 228,978,272.70
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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.