Finding the Fourth Proportional to 1,096,771,831.19, 1,513,545,126.99 and 626,883,241.23
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Solution
The fourth proportional to 1,096,771,831.19, 1,513,545,126.99 and 626,883,241.23 is: 865,098,872.87
Step by Step Solution
- Step 1: Write the proportion equation
1,096,771,831.19 : 1,513,545,126.99 = 626,883,241.23 : x - Step 2: Convert to fraction form
1,096,771,831.19/1,513,545,126.99 = 626,883,241.23/x - Step 3: Cross multiply
1,096,771,831.19x = 1,513,545,126.99 × 626,883,241.23 - Step 4: Simplify right side
1,096,771,831.19x = 948,816,074,955,363,200 - Step 5: Solve for x
x = 948,816,074,955,363,200/1,096,771,831.19 - Step 6: Final answer
x = 865,098,872.87
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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.