Finding the Fourth Proportional to 1,190,497,744.49, 1,785,816,119.26 and 361,478,432.48
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Solution
The fourth proportional to 1,190,497,744.49, 1,785,816,119.26 and 361,478,432.48 is: 542,238,752.22
Step by Step Solution
- Step 1: Write the proportion equation
1,190,497,744.49 : 1,785,816,119.26 = 361,478,432.48 : x - Step 2: Convert to fraction form
1,190,497,744.49/1,785,816,119.26 = 361,478,432.48/x - Step 3: Cross multiply
1,190,497,744.49x = 1,785,816,119.26 × 361,478,432.48 - Step 4: Simplify right side
1,190,497,744.49x = 645,534,011,495,776,640 - Step 5: Solve for x
x = 645,534,011,495,776,640/1,190,497,744.49 - Step 6: Final answer
x = 542,238,752.22
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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.