Finding the Fourth Proportional to 398,628,849.80, 597,943,274.70 and 360,365,097.80
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Solution
The fourth proportional to 398,628,849.80, 597,943,274.70 and 360,365,097.80 is: 540,547,646.70
Step by Step Solution
- Step 1: Write the proportion equation
398,628,849.80 : 597,943,274.70 = 360,365,097.80 : x - Step 2: Convert to fraction form
398,628,849.80/597,943,274.70 = 360,365,097.80/x - Step 3: Cross multiply
398,628,849.80x = 597,943,274.70 × 360,365,097.80 - Step 4: Simplify right side
398,628,849.80x = 215,477,886,666,117,792 - Step 5: Solve for x
x = 215,477,886,666,117,792/398,628,849.80 - Step 6: Final answer
x = 540,547,646.70
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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.