Finding the Fourth Proportional to 764,121,309.24, 1,145,012,838.12 and 514,201,033.74
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Solution
The fourth proportional to 764,121,309.24, 1,145,012,838.12 and 514,201,033.74 is: 770,514,809.48
Step by Step Solution
- Step 1: Write the proportion equation
764,121,309.24 : 1,145,012,838.12 = 514,201,033.74 : x - Step 2: Convert to fraction form
764,121,309.24/1,145,012,838.12 = 514,201,033.74/x - Step 3: Cross multiply
764,121,309.24x = 1,145,012,838.12 × 514,201,033.74 - Step 4: Simplify right side
764,121,309.24x = 588,766,785,006,875,264 - Step 5: Solve for x
x = 588,766,785,006,875,264/764,121,309.24 - Step 6: Final answer
x = 770,514,809.48
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Double scale
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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.