Finding the Fourth Proportional to 1,941,596,545.80, 2,912,394,818.70 and 561,456,078.60
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Solution
The fourth proportional to 1,941,596,545.80, 2,912,394,818.70 and 561,456,078.60 is: 842,184,117.90
Step by Step Solution
- Step 1: Write the proportion equation
1,941,596,545.80 : 2,912,394,818.70 = 561,456,078.60 : x - Step 2: Convert to fraction form
1,941,596,545.80/2,912,394,818.70 = 561,456,078.60/x - Step 3: Cross multiply
1,941,596,545.80x = 2,912,394,818.70 × 561,456,078.60 - Step 4: Simplify right side
1,941,596,545.80x = 1,635,181,774,242,259,968 - Step 5: Solve for x
x = 1,635,181,774,242,259,968/1,941,596,545.80 - Step 6: Final answer
x = 842,184,117.90
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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.