Finding the Fourth Proportional to 1,276,960,466.49, 1,762,204,664.30 and 690,249,602.49
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Solution
The fourth proportional to 1,276,960,466.49, 1,762,204,664.30 and 690,249,602.49 is: 952,544,030.11
Step by Step Solution
- Step 1: Write the proportion equation
1,276,960,466.49 : 1,762,204,664.30 = 690,249,602.49 : x - Step 2: Convert to fraction form
1,276,960,466.49/1,762,204,664.30 = 690,249,602.49/x - Step 3: Cross multiply
1,276,960,466.49x = 1,762,204,664.30 × 690,249,602.49 - Step 4: Simplify right side
1,276,960,466.49x = 1,216,361,069,039,098,880 - Step 5: Solve for x
x = 1,216,361,069,039,098,880/1,276,960,466.49 - Step 6: Final answer
x = 952,544,030.11
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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.