Finding the Fourth Proportional to 497,613,693.84, 686,843,482.68 and 288,837,097.80
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Solution
The fourth proportional to 497,613,693.84, 686,843,482.68 and 288,837,097.80 is: 398,674,475.07
Step by Step Solution
- Step 1: Write the proportion equation
497,613,693.84 : 686,843,482.68 = 288,837,097.80 : x - Step 2: Convert to fraction form
497,613,693.84/686,843,482.68 = 288,837,097.80/x - Step 3: Cross multiply
497,613,693.84x = 686,843,482.68 × 288,837,097.80 - Step 4: Simplify right side
497,613,693.84x = 198,385,878,180,135,744 - Step 5: Solve for x
x = 198,385,878,180,135,744/497,613,693.84 - Step 6: Final answer
x = 398,674,475.07
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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.