Finding the Fourth Proportional to 809,502,028.64, 1,117,113,160.20 and 438,224,048
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Solution
The fourth proportional to 809,502,028.64, 1,117,113,160.20 and 438,224,048 is: 604,749,381.49
Step by Step Solution
- Step 1: Write the proportion equation
809,502,028.64 : 1,117,113,160.20 = 438,224,048 : x - Step 2: Convert to fraction form
809,502,028.64/1,117,113,160.20 = 438,224,048/x - Step 3: Cross multiply
809,502,028.64x = 1,117,113,160.20 × 438,224,048 - Step 4: Simplify right side
809,502,028.64x = 489,545,851,136,916,480 - Step 5: Solve for x
x = 489,545,851,136,916,480/809,502,028.64 - Step 6: Final answer
x = 604,749,381.49
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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.