Finding the Fourth Proportional to 1,972,265,125.61, 2,721,811,428.78 and 1,092,198,829.61
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Solution
The fourth proportional to 1,972,265,125.61, 2,721,811,428.78 and 1,092,198,829.61 is: 1,507,281,763.65
Step by Step Solution
- Step 1: Write the proportion equation
1,972,265,125.61 : 2,721,811,428.78 = 1,092,198,829.61 : x - Step 2: Convert to fraction form
1,972,265,125.61/2,721,811,428.78 = 1,092,198,829.61/x - Step 3: Cross multiply
1,972,265,125.61x = 2,721,811,428.78 × 1,092,198,829.61 - Step 4: Simplify right side
1,972,265,125.61x = 2,972,759,256,915,202,560 - Step 5: Solve for x
x = 2,972,759,256,915,202,560/1,972,265,125.61 - Step 6: Final answer
x = 1,507,281,763.65
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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.