Finding the Fourth Proportional to 1,334,692,291.98, 2,000,636,987.85 and 449,070,208.68
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Solution
The fourth proportional to 1,334,692,291.98, 2,000,636,987.85 and 449,070,208.68 is: 673,133,781.49
Step by Step Solution
- Step 1: Write the proportion equation
1,334,692,291.98 : 2,000,636,987.85 = 449,070,208.68 : x - Step 2: Convert to fraction form
1,334,692,291.98/2,000,636,987.85 = 449,070,208.68/x - Step 3: Cross multiply
1,334,692,291.98x = 2,000,636,987.85 × 449,070,208.68 - Step 4: Simplify right side
1,334,692,291.98x = 898,426,469,626,726,144 - Step 5: Solve for x
x = 898,426,469,626,726,144/1,334,692,291.98 - Step 6: Final answer
x = 673,133,781.49
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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.