Finding the Fourth Proportional to 352,579,813.80, 528,869,720.70 and 352,579,813.80
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Solution
The fourth proportional to 352,579,813.80, 528,869,720.70 and 352,579,813.80 is: 528,869,720.70
Step by Step Solution
- Step 1: Write the proportion equation
352,579,813.80 : 528,869,720.70 = 352,579,813.80 : x - Step 2: Convert to fraction form
352,579,813.80/528,869,720.70 = 352,579,813.80/x - Step 3: Cross multiply
352,579,813.80x = 528,869,720.70 × 352,579,813.80 - Step 4: Simplify right side
352,579,813.80x = 186,468,787,648,864,000 - Step 5: Solve for x
x = 186,468,787,648,864,000/352,579,813.80 - Step 6: Final answer
x = 528,869,720.70
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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.