Finding the Fourth Proportional to 476,424,014.40, 714,636,021.60 and 169,726,132.80
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Solution
The fourth proportional to 476,424,014.40, 714,636,021.60 and 169,726,132.80 is: 254,589,199.20
Step by Step Solution
- Step 1: Write the proportion equation
476,424,014.40 : 714,636,021.60 = 169,726,132.80 : x - Step 2: Convert to fraction form
476,424,014.40/714,636,021.60 = 169,726,132.80/x - Step 3: Cross multiply
476,424,014.40x = 714,636,021.60 × 169,726,132.80 - Step 4: Simplify right side
476,424,014.40x = 121,292,408,305,745,280 - Step 5: Solve for x
x = 121,292,408,305,745,280/476,424,014.40 - Step 6: Final answer
x = 254,589,199.20
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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.