Finding the Fourth Proportional to 525,284,574.80, 787,926,862.20 and 482,958,251.60
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Solution
The fourth proportional to 525,284,574.80, 787,926,862.20 and 482,958,251.60 is: 724,437,377.40
Step by Step Solution
- Step 1: Write the proportion equation
525,284,574.80 : 787,926,862.20 = 482,958,251.60 : x - Step 2: Convert to fraction form
525,284,574.80/787,926,862.20 = 482,958,251.60/x - Step 3: Cross multiply
525,284,574.80x = 787,926,862.20 × 482,958,251.60 - Step 4: Simplify right side
525,284,574.80x = 380,535,779,756,786,176 - Step 5: Solve for x
x = 380,535,779,756,786,176/525,284,574.80 - Step 6: Final answer
x = 724,437,377.40
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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.