Finding the Fourth Proportional to 618,746,387.19, 928,528,468.79 and 291,315,539.19
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Solution
The fourth proportional to 618,746,387.19, 928,528,468.79 and 291,315,539.19 is: 437,165,819.70
Step by Step Solution
- Step 1: Write the proportion equation
618,746,387.19 : 928,528,468.79 = 291,315,539.19 : x - Step 2: Convert to fraction form
618,746,387.19/928,528,468.79 = 291,315,539.19/x - Step 3: Cross multiply
618,746,387.19x = 928,528,468.79 × 291,315,539.19 - Step 4: Simplify right side
618,746,387.19x = 270,494,771,537,684,800 - Step 5: Solve for x
x = 270,494,771,537,684,800/618,746,387.19 - Step 6: Final answer
x = 437,165,819.70
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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.