Finding the Fourth Proportional to 2,475,363,977.40, 3,711,770,507.70 and 921,855,646.20
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Solution
The fourth proportional to 2,475,363,977.40, 3,711,770,507.70 and 921,855,646.20 is: 1,382,308,473.08
Step by Step Solution
- Step 1: Write the proportion equation
2,475,363,977.40 : 3,711,770,507.70 = 921,855,646.20 : x - Step 2: Convert to fraction form
2,475,363,977.40/3,711,770,507.70 = 921,855,646.20/x - Step 3: Cross multiply
2,475,363,977.40x = 3,711,770,507.70 × 921,855,646.20 - Step 4: Simplify right side
2,475,363,977.40x = 3,421,716,599,921,885,696 - Step 5: Solve for x
x = 3,421,716,599,921,885,696/2,475,363,977.40 - Step 6: Final answer
x = 1,382,308,473.08
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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.