Finding the Fourth Proportional to 373,355,642.98, 515,424,293.85 and 272,771,133.31
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Solution
The fourth proportional to 373,355,642.98, 515,424,293.85 and 272,771,133.31 is: 376,565,538.55
Step by Step Solution
- Step 1: Write the proportion equation
373,355,642.98 : 515,424,293.85 = 272,771,133.31 : x - Step 2: Convert to fraction form
373,355,642.98/515,424,293.85 = 272,771,133.31/x - Step 3: Cross multiply
373,355,642.98x = 515,424,293.85 × 272,771,133.31 - Step 4: Simplify right side
373,355,642.98x = 140,592,868,768,970,976 - Step 5: Solve for x
x = 140,592,868,768,970,976/373,355,642.98 - Step 6: Final answer
x = 376,565,538.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.