Finding the Fourth Proportional to 1,305,280,686.68, 1,957,921,030.02 and 443,637,678.68
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Solution
The fourth proportional to 1,305,280,686.68, 1,957,921,030.02 and 443,637,678.68 is: 665,456,518.02
Step by Step Solution
- Step 1: Write the proportion equation
1,305,280,686.68 : 1,957,921,030.02 = 443,637,678.68 : x - Step 2: Convert to fraction form
1,305,280,686.68/1,957,921,030.02 = 443,637,678.68/x - Step 3: Cross multiply
1,305,280,686.68x = 1,957,921,030.02 × 443,637,678.68 - Step 4: Simplify right side
1,305,280,686.68x = 868,607,540,787,037,824 - Step 5: Solve for x
x = 868,607,540,787,037,824/1,305,280,686.68 - Step 6: Final answer
x = 665,456,518.02
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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.