Finding the Fourth Proportional to 1,405,385,482.05, 1,937,011,192.43 and 934,645,673.07
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Solution
The fourth proportional to 1,405,385,482.05, 1,937,011,192.43 and 934,645,673.07 is: 1,288,201,104.12
Step by Step Solution
- Step 1: Write the proportion equation
1,405,385,482.05 : 1,937,011,192.43 = 934,645,673.07 : x - Step 2: Convert to fraction form
1,405,385,482.05/1,937,011,192.43 = 934,645,673.07/x - Step 3: Cross multiply
1,405,385,482.05x = 1,937,011,192.43 × 934,645,673.07 - Step 4: Simplify right side
1,405,385,482.05x = 1,810,419,129,688,187,392 - Step 5: Solve for x
x = 1,810,419,129,688,187,392/1,405,385,482.05 - Step 6: Final answer
x = 1,288,201,104.12
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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.