Finding the Fourth Proportional to 398,359,513.80, 597,539,270.70 and 330,335,065.80
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Solution
The fourth proportional to 398,359,513.80, 597,539,270.70 and 330,335,065.80 is: 495,502,598.70
Step by Step Solution
- Step 1: Write the proportion equation
398,359,513.80 : 597,539,270.70 = 330,335,065.80 : x - Step 2: Convert to fraction form
398,359,513.80/597,539,270.70 = 330,335,065.80/x - Step 3: Cross multiply
398,359,513.80x = 597,539,270.70 × 330,335,065.80 - Step 4: Simplify right side
398,359,513.80x = 197,388,174,304,768,544 - Step 5: Solve for x
x = 197,388,174,304,768,544/398,359,513.80 - Step 6: Final answer
x = 495,502,598.70
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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.