Finding the Fourth Proportional to 2,512,210,553.76, 3,768,877,829.50 and 765,549,991.11
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Solution
The fourth proportional to 2,512,210,553.76, 3,768,877,829.50 and 765,549,991.11 is: 1,148,496,245.49
Step by Step Solution
- Step 1: Write the proportion equation
2,512,210,553.76 : 3,768,877,829.50 = 765,549,991.11 : x - Step 2: Convert to fraction form
2,512,210,553.76/3,768,877,829.50 = 765,549,991.11/x - Step 3: Cross multiply
2,512,210,553.76x = 3,768,877,829.50 × 765,549,991.11 - Step 4: Simplify right side
2,512,210,553.76x = 2,885,264,388,868,401,152 - Step 5: Solve for x
x = 2,885,264,388,868,401,152/2,512,210,553.76 - Step 6: Final answer
x = 1,148,496,245.49
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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.