Finding the Fourth Proportional to 664,872,007.80, 997,308,011.70 and 551,625,799.80
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Solution
The fourth proportional to 664,872,007.80, 997,308,011.70 and 551,625,799.80 is: 827,438,699.70
Step by Step Solution
- Step 1: Write the proportion equation
664,872,007.80 : 997,308,011.70 = 551,625,799.80 : x - Step 2: Convert to fraction form
664,872,007.80/997,308,011.70 = 551,625,799.80/x - Step 3: Cross multiply
664,872,007.80x = 997,308,011.70 × 551,625,799.80 - Step 4: Simplify right side
664,872,007.80x = 550,140,829,600,960,256 - Step 5: Solve for x
x = 550,140,829,600,960,256/664,872,007.80 - Step 6: Final answer
x = 827,438,699.70
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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.