Finding the Fourth Proportional to 420,901,272,000.67, 631,351,908,000.99 and 420,901,272,000.67
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Solution
The fourth proportional to 420,901,272,000.67, 631,351,908,000.99 and 420,901,272,000.67 is: 631,351,908,000.99
Step by Step Solution
- Step 1: Write the proportion equation
420,901,272,000.67 : 631,351,908,000.99 = 420,901,272,000.67 : x - Step 2: Convert to fraction form
420,901,272,000.67/631,351,908,000.99 = 420,901,272,000.67/x - Step 3: Cross multiply
420,901,272,000.67x = 631,351,908,000.99 × 420,901,272,000.67 - Step 4: Simplify right side
420,901,272,000.67x = 265,736,821,157,666,643,509,248 - Step 5: Solve for x
x = 265,736,821,157,666,643,509,248/420,901,272,000.67 - Step 6: Final answer
x = 631,351,908,000.99
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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.