Finding the Fourth Proportional to 1,203,440,649.99, 1,660,044,494.21 and 756,696,730.76
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Solution
The fourth proportional to 1,203,440,649.99, 1,660,044,494.21 and 756,696,730.76 is: 1,043,799,078.67
Step by Step Solution
- Step 1: Write the proportion equation
1,203,440,649.99 : 1,660,044,494.21 = 756,696,730.76 : x - Step 2: Convert to fraction form
1,203,440,649.99/1,660,044,494.21 = 756,696,730.76/x - Step 3: Cross multiply
1,203,440,649.99x = 1,660,044,494.21 × 756,696,730.76 - Step 4: Simplify right side
1,203,440,649.99x = 1,256,150,241,690,886,656 - Step 5: Solve for x
x = 1,256,150,241,690,886,656/1,203,440,649.99 - Step 6: Final answer
x = 1,043,799,078.67
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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.