Finding the Fourth Proportional to 1,419,307,220.80, 2,128,960,831.20 and 805,654,331.20
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Solution
The fourth proportional to 1,419,307,220.80, 2,128,960,831.20 and 805,654,331.20 is: 1,208,481,496.80
Step by Step Solution
- Step 1: Write the proportion equation
1,419,307,220.80 : 2,128,960,831.20 = 805,654,331.20 : x - Step 2: Convert to fraction form
1,419,307,220.80/2,128,960,831.20 = 805,654,331.20/x - Step 3: Cross multiply
1,419,307,220.80x = 2,128,960,831.20 × 805,654,331.20 - Step 4: Simplify right side
1,419,307,220.80x = 1,715,206,514,611,432,192 - Step 5: Solve for x
x = 1,715,206,514,611,432,192/1,419,307,220.80 - Step 6: Final answer
x = 1,208,481,496.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.