Finding the Fourth Proportional to 838,461,136.80, 1,157,029,151.84 and 462,116,584.08
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Solution
The fourth proportional to 838,461,136.80, 1,157,029,151.84 and 462,116,584.08 is: 637,694,862.48
Step by Step Solution
- Step 1: Write the proportion equation
838,461,136.80 : 1,157,029,151.84 = 462,116,584.08 : x - Step 2: Convert to fraction form
838,461,136.80/1,157,029,151.84 = 462,116,584.08/x - Step 3: Cross multiply
838,461,136.80x = 1,157,029,151.84 × 462,116,584.08 - Step 4: Simplify right side
838,461,136.80x = 534,682,359,329,280,384 - Step 5: Solve for x
x = 534,682,359,329,280,384/838,461,136.80 - Step 6: Final answer
x = 637,694,862.48
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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.