Finding the Fourth Proportional to 398,627,417.80, 597,941,126.70 and 360,363,665.80
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Solution
The fourth proportional to 398,627,417.80, 597,941,126.70 and 360,363,665.80 is: 540,545,498.70
Step by Step Solution
- Step 1: Write the proportion equation
398,627,417.80 : 597,941,126.70 = 360,363,665.80 : x - Step 2: Convert to fraction form
398,627,417.80/597,941,126.70 = 360,363,665.80/x - Step 3: Cross multiply
398,627,417.80x = 597,941,126.70 × 360,363,665.80 - Step 4: Simplify right side
398,627,417.80x = 215,476,256,350,194,272 - Step 5: Solve for x
x = 215,476,256,350,194,272/398,627,417.80 - Step 6: Final answer
x = 540,545,498.70
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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.