Finding the Fourth Proportional to 747,372,657.08, 1,121,090,136.48 and 256,423,623.08
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Solution
The fourth proportional to 747,372,657.08, 1,121,090,136.48 and 256,423,623.08 is: 384,646,122.48
Step by Step Solution
- Step 1: Write the proportion equation
747,372,657.08 : 1,121,090,136.48 = 256,423,623.08 : x - Step 2: Convert to fraction form
747,372,657.08/1,121,090,136.48 = 256,423,623.08/x - Step 3: Cross multiply
747,372,657.08x = 1,121,090,136.48 × 256,423,623.08 - Step 4: Simplify right side
747,372,657.08x = 287,473,994,595,453,312 - Step 5: Solve for x
x = 287,473,994,595,453,312/747,372,657.08 - Step 6: Final answer
x = 384,646,122.48
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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.