Finding the Fourth Proportional to 664,848,008.20, 997,272,012.30 and 610,428,449.80
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Solution
The fourth proportional to 664,848,008.20, 997,272,012.30 and 610,428,449.80 is: 915,642,674.70
Step by Step Solution
- Step 1: Write the proportion equation
664,848,008.20 : 997,272,012.30 = 610,428,449.80 : x - Step 2: Convert to fraction form
664,848,008.20/997,272,012.30 = 610,428,449.80/x - Step 3: Cross multiply
664,848,008.20x = 997,272,012.30 × 610,428,449.80 - Step 4: Simplify right side
664,848,008.20x = 608,763,208,497,215,488 - Step 5: Solve for x
x = 608,763,208,497,215,488/664,848,008.20 - Step 6: Final answer
x = 915,642,674.70
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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.