Finding the Fourth Proportional to 528,875,843.20, 793,313,764.80 and 313,884,995.20
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Solution
The fourth proportional to 528,875,843.20, 793,313,764.80 and 313,884,995.20 is: 470,827,492.80
Step by Step Solution
- Step 1: Write the proportion equation
528,875,843.20 : 793,313,764.80 = 313,884,995.20 : x - Step 2: Convert to fraction form
528,875,843.20/793,313,764.80 = 313,884,995.20/x - Step 3: Cross multiply
528,875,843.20x = 793,313,764.80 × 313,884,995.20 - Step 4: Simplify right side
528,875,843.20x = 249,009,287,256,341,920 - Step 5: Solve for x
x = 249,009,287,256,341,920/528,875,843.20 - Step 6: Final answer
x = 470,827,492.80
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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.