Finding the Fourth Proportional to 759,221,090.31, 1,138,537,211.62 and 261,136,898.09
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Solution
The fourth proportional to 759,221,090.31, 1,138,537,211.62 and 261,136,898.09 is: 391,604,078.97
Step by Step Solution
- Step 1: Write the proportion equation
759,221,090.31 : 1,138,537,211.62 = 261,136,898.09 : x - Step 2: Convert to fraction form
759,221,090.31/1,138,537,211.62 = 261,136,898.09/x - Step 3: Cross multiply
759,221,090.31x = 1,138,537,211.62 × 261,136,898.09 - Step 4: Simplify right side
759,221,090.31x = 297,314,075,804,952,192 - Step 5: Solve for x
x = 297,314,075,804,952,192/759,221,090.31 - Step 6: Final answer
x = 391,604,078.97
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.