Finding the Fourth Proportional to 1,513,363,099.80, 2,270,044,649.70 and 929,203,152.60
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Solution
The fourth proportional to 1,513,363,099.80, 2,270,044,649.70 and 929,203,152.60 is: 1,393,804,728.90
Step by Step Solution
- Step 1: Write the proportion equation
1,513,363,099.80 : 2,270,044,649.70 = 929,203,152.60 : x - Step 2: Convert to fraction form
1,513,363,099.80/2,270,044,649.70 = 929,203,152.60/x - Step 3: Cross multiply
1,513,363,099.80x = 2,270,044,649.70 × 929,203,152.60 - Step 4: Simplify right side
1,513,363,099.80x = 2,109,332,645,044,002,560 - Step 5: Solve for x
x = 2,109,332,645,044,002,560/1,513,363,099.80 - Step 6: Final answer
x = 1,393,804,728.90
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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.