Finding the Fourth Proportional to 701,724,728.40, 1,051,453,351.80 and 442,475,998.80
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Solution
The fourth proportional to 701,724,728.40, 1,051,453,351.80 and 442,475,998.80 is: 662,999,112.33
Step by Step Solution
- Step 1: Write the proportion equation
701,724,728.40 : 1,051,453,351.80 = 442,475,998.80 : x - Step 2: Convert to fraction form
701,724,728.40/1,051,453,351.80 = 442,475,998.80/x - Step 3: Cross multiply
701,724,728.40x = 1,051,453,351.80 × 442,475,998.80 - Step 4: Simplify right side
701,724,728.40x = 465,242,872,029,312,768 - Step 5: Solve for x
x = 465,242,872,029,312,768/701,724,728.40 - Step 6: Final answer
x = 662,999,112.33
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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.