Finding the Fourth Proportional to 468,021,211.80, 702,031,817.70 and 238,438,699.80
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Solution
The fourth proportional to 468,021,211.80, 702,031,817.70 and 238,438,699.80 is: 357,658,049.70
Step by Step Solution
- Step 1: Write the proportion equation
468,021,211.80 : 702,031,817.70 = 238,438,699.80 : x - Step 2: Convert to fraction form
468,021,211.80/702,031,817.70 = 238,438,699.80/x - Step 3: Cross multiply
468,021,211.80x = 702,031,817.70 × 238,438,699.80 - Step 4: Simplify right side
468,021,211.80x = 167,391,553,830,618,656 - Step 5: Solve for x
x = 167,391,553,830,618,656/468,021,211.80 - Step 6: Final answer
x = 357,658,049.70
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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.