Finding the Fourth Proportional to 865,754,315.28, 1,194,708,947.47 and 469,268,792.19
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Solution
The fourth proportional to 865,754,315.28, 1,194,708,947.47 and 469,268,792.19 is: 647,573,583.99
Step by Step Solution
- Step 1: Write the proportion equation
865,754,315.28 : 1,194,708,947.47 = 469,268,792.19 : x - Step 2: Convert to fraction form
865,754,315.28/1,194,708,947.47 = 469,268,792.19/x - Step 3: Cross multiply
865,754,315.28x = 1,194,708,947.47 × 469,268,792.19 - Step 4: Simplify right side
865,754,315.28x = 560,639,624,796,659,840 - Step 5: Solve for x
x = 560,639,624,796,659,840/865,754,315.28 - Step 6: Final answer
x = 647,573,583.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.