Finding the Fourth Proportional to 664,301,511.90, 996,452,267.85 and 446,623,278.30
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Solution
The fourth proportional to 664,301,511.90, 996,452,267.85 and 446,623,278.30 is: 669,934,917.45
Step by Step Solution
- Step 1: Write the proportion equation
664,301,511.90 : 996,452,267.85 = 446,623,278.30 : x - Step 2: Convert to fraction form
664,301,511.90/996,452,267.85 = 446,623,278.30/x - Step 3: Cross multiply
664,301,511.90x = 996,452,267.85 × 446,623,278.30 - Step 4: Simplify right side
664,301,511.90x = 445,038,778,536,636,736 - Step 5: Solve for x
x = 445,038,778,536,636,736/664,301,511.90 - Step 6: Final answer
x = 669,934,917.45
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Double scale
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Similar ratio
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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.