Finding the Fourth Proportional to 3,868,243,124.11, 5,338,143,421.98 and 2,174,705,317.90
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Solution
The fourth proportional to 3,868,243,124.11, 5,338,143,421.98 and 2,174,705,317.90 is: 3,001,075,298.28
Step by Step Solution
- Step 1: Write the proportion equation
3,868,243,124.11 : 5,338,143,421.98 = 2,174,705,317.90 : x - Step 2: Convert to fraction form
3,868,243,124.11/5,338,143,421.98 = 2,174,705,317.90/x - Step 3: Cross multiply
3,868,243,124.11x = 5,338,143,421.98 × 2,174,705,317.90 - Step 4: Simplify right side
3,868,243,124.11x = 11,608,888,887,492,808,704 - Step 5: Solve for x
x = 11,608,888,887,492,808,704/3,868,243,124.11 - Step 6: Final answer
x = 3,001,075,298.28
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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.