Finding the Fourth Proportional to 757,804,539.90, 1,136,706,809.85 and 512,916,527.10
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Solution
The fourth proportional to 757,804,539.90, 1,136,706,809.85 and 512,916,527.10 is: 769,374,790.65
Step by Step Solution
- Step 1: Write the proportion equation
757,804,539.90 : 1,136,706,809.85 = 512,916,527.10 : x - Step 2: Convert to fraction form
757,804,539.90/1,136,706,809.85 = 512,916,527.10/x - Step 3: Cross multiply
757,804,539.90x = 1,136,706,809.85 × 512,916,527.10 - Step 4: Simplify right side
757,804,539.90x = 583,035,709,239,182,080 - Step 5: Solve for x
x = 583,035,709,239,182,080/757,804,539.90 - Step 6: Final answer
x = 769,374,790.65
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Double scale
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Similar ratio
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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.