Finding the Fourth Proportional to 769,706,030.76, 1,062,202,646.14 and 452,179,660.92
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Solution
The fourth proportional to 769,706,030.76, 1,062,202,646.14 and 452,179,660.92 is: 624,012,821.99
Step by Step Solution
- Step 1: Write the proportion equation
769,706,030.76 : 1,062,202,646.14 = 452,179,660.92 : x - Step 2: Convert to fraction form
769,706,030.76/1,062,202,646.14 = 452,179,660.92/x - Step 3: Cross multiply
769,706,030.76x = 1,062,202,646.14 × 452,179,660.92 - Step 4: Simplify right side
769,706,030.76x = 480,306,432,359,911,936 - Step 5: Solve for x
x = 480,306,432,359,911,936/769,706,030.76 - Step 6: Final answer
x = 624,012,821.99
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Double scale
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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.