Finding the Fourth Proportional to 519,003,219.70, 778,504,829.55 and 155,497,575.70
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Solution
The fourth proportional to 519,003,219.70, 778,504,829.55 and 155,497,575.70 is: 233,246,363.55
Step by Step Solution
- Step 1: Write the proportion equation
519,003,219.70 : 778,504,829.55 = 155,497,575.70 : x - Step 2: Convert to fraction form
519,003,219.70/778,504,829.55 = 155,497,575.70/x - Step 3: Cross multiply
519,003,219.70x = 778,504,829.55 × 155,497,575.70 - Step 4: Simplify right side
519,003,219.70x = 121,055,613,665,766,704 - Step 5: Solve for x
x = 121,055,613,665,766,704/519,003,219.70 - Step 6: Final answer
x = 233,246,363.55
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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.