Finding the Fourth Proportional to 1,398,877,552.74, 1,930,477,892.86 and 763,823,224
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Solution
The fourth proportional to 1,398,877,552.74, 1,930,477,892.86 and 763,823,224 is: 1,054,090,720.88
Step by Step Solution
- Step 1: Write the proportion equation
1,398,877,552.74 : 1,930,477,892.86 = 763,823,224 : x - Step 2: Convert to fraction form
1,398,877,552.74/1,930,477,892.86 = 763,823,224/x - Step 3: Cross multiply
1,398,877,552.74x = 1,930,477,892.86 × 763,823,224 - Step 4: Simplify right side
1,398,877,552.74x = 1,474,543,847,985,051,648 - Step 5: Solve for x
x = 1,474,543,847,985,051,648/1,398,877,552.74 - Step 6: Final answer
x = 1,054,090,720.88
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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.