Finding the Fourth Proportional to 1,266,169,639.20, 1,747,411,036.93 and 796,673,402.16
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Solution
The fourth proportional to 1,266,169,639.20, 1,747,411,036.93 and 796,673,402.16 is: 1,099,470,286.34
Step by Step Solution
- Step 1: Write the proportion equation
1,266,169,639.20 : 1,747,411,036.93 = 796,673,402.16 : x - Step 2: Convert to fraction form
1,266,169,639.20/1,747,411,036.93 = 796,673,402.16/x - Step 3: Cross multiply
1,266,169,639.20x = 1,747,411,036.93 × 796,673,402.16 - Step 4: Simplify right side
1,266,169,639.20x = 1,392,115,895,762,956,544 - Step 5: Solve for x
x = 1,392,115,895,762,956,544/1,266,169,639.20 - Step 6: Final answer
x = 1,099,470,286.34
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1.5x scale
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.