Finding the Fourth Proportional to 5,211,420,324.64, 7,817,125,510 and 1,334,020,567.84
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Solution
The fourth proportional to 5,211,420,324.64, 7,817,125,510 and 1,334,020,567.84 is: 2,001,029,577.76
Step by Step Solution
- Step 1: Write the proportion equation
5,211,420,324.64 : 7,817,125,510 = 1,334,020,567.84 : x - Step 2: Convert to fraction form
5,211,420,324.64/7,817,125,510 = 1,334,020,567.84/x - Step 3: Cross multiply
5,211,420,324.64x = 7,817,125,510 × 1,334,020,567.84 - Step 4: Simplify right side
5,211,420,324.64x = 10,428,206,211,726,749,696 - Step 5: Solve for x
x = 10,428,206,211,726,749,696/5,211,420,324.64 - Step 6: Final answer
x = 2,001,029,577.76
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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.