Finding the Fourth Proportional to 1,186,970,463.68, 1,636,127,307.36 and 935,665,359.68
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Solution
The fourth proportional to 1,186,970,463.68, 1,636,127,307.36 and 935,665,359.68 is: 1,289,726,823.34
Step by Step Solution
- Step 1: Write the proportion equation
1,186,970,463.68 : 1,636,127,307.36 = 935,665,359.68 : x - Step 2: Convert to fraction form
1,186,970,463.68/1,636,127,307.36 = 935,665,359.68/x - Step 3: Cross multiply
1,186,970,463.68x = 1,636,127,307.36 × 935,665,359.68 - Step 4: Simplify right side
1,186,970,463.68x = 1,530,867,645,523,264,000 - Step 5: Solve for x
x = 1,530,867,645,523,264,000/1,186,970,463.68 - Step 6: Final answer
x = 1,289,726,823.34
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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.