Finding the Fourth Proportional to 1,332,477,278.48, 1,838,876,108.32 and 737,761,775.60
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Solution
The fourth proportional to 1,332,477,278.48, 1,838,876,108.32 and 737,761,775.60 is: 1,018,143,066.82
Step by Step Solution
- Step 1: Write the proportion equation
1,332,477,278.48 : 1,838,876,108.32 = 737,761,775.60 : x - Step 2: Convert to fraction form
1,332,477,278.48/1,838,876,108.32 = 737,761,775.60/x - Step 3: Cross multiply
1,332,477,278.48x = 1,838,876,108.32 × 737,761,775.60 - Step 4: Simplify right side
1,332,477,278.48x = 1,356,652,502,782,581,248 - Step 5: Solve for x
x = 1,356,652,502,782,581,248/1,332,477,278.48 - Step 6: Final answer
x = 1,018,143,066.82
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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.