Finding the Fourth Proportional to 619,648,221.90, 855,129,880.26 and 337,406,135.70
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Solution
The fourth proportional to 619,648,221.90, 855,129,880.26 and 337,406,135.70 is: 465,628,816.84
Step by Step Solution
- Step 1: Write the proportion equation
619,648,221.90 : 855,129,880.26 = 337,406,135.70 : x - Step 2: Convert to fraction form
619,648,221.90/855,129,880.26 = 337,406,135.70/x - Step 3: Cross multiply
619,648,221.90x = 855,129,880.26 × 337,406,135.70 - Step 4: Simplify right side
619,648,221.90x = 288,526,068,420,130,304 - Step 5: Solve for x
x = 288,526,068,420,130,304/619,648,221.90 - Step 6: Final answer
x = 465,628,816.84
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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.