Finding the Fourth Proportional to 790,275,136, 1,090,579,687.68 and 442,594,624
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Solution
The fourth proportional to 790,275,136, 1,090,579,687.68 and 442,594,624 is: 610,780,581.12
Step by Step Solution
- Step 1: Write the proportion equation
790,275,136 : 1,090,579,687.68 = 442,594,624 : x - Step 2: Convert to fraction form
790,275,136/1,090,579,687.68 = 442,594,624/x - Step 3: Cross multiply
790,275,136x = 1,090,579,687.68 × 442,594,624 - Step 4: Simplify right side
790,275,136x = 482,684,706,810,767,040 - Step 5: Solve for x
x = 482,684,706,810,767,040/790,275,136 - Step 6: Final answer
x = 610,780,581.12
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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.