Finding the Fourth Proportional to 639,013,749,737.94, 881,866,694,600.64 and 353,872,269,833.94
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Solution
The fourth proportional to 639,013,749,737.94, 881,866,694,600.64 and 353,872,269,833.94 is: 488,359,083,098.39
Step by Step Solution
- Step 1: Write the proportion equation
639,013,749,737.94 : 881,866,694,600.64 = 353,872,269,833.94 : x - Step 2: Convert to fraction form
639,013,749,737.94/881,866,694,600.64 = 353,872,269,833.94/x - Step 3: Cross multiply
639,013,749,737.94x = 881,866,694,600.64 × 353,872,269,833.94 - Step 4: Simplify right side
639,013,749,737.94x = 312,068,168,909,282,428,846,080 - Step 5: Solve for x
x = 312,068,168,909,282,428,846,080/639,013,749,737.94 - Step 6: Final answer
x = 488,359,083,098.39
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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.