Finding the Fourth Proportional to 2,989,657,359.60, 4,484,486,039.40 and 1,246,265,159.10
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Solution
The fourth proportional to 2,989,657,359.60, 4,484,486,039.40 and 1,246,265,159.10 is: 1,869,397,738.65
Step by Step Solution
- Step 1: Write the proportion equation
2,989,657,359.60 : 4,484,486,039.40 = 1,246,265,159.10 : x - Step 2: Convert to fraction form
2,989,657,359.60/4,484,486,039.40 = 1,246,265,159.10/x - Step 3: Cross multiply
2,989,657,359.60x = 4,484,486,039.40 × 1,246,265,159.10 - Step 4: Simplify right side
2,989,657,359.60x = 5,588,858,707,374,569,472 - Step 5: Solve for x
x = 5,588,858,707,374,569,472/2,989,657,359.60 - Step 6: Final answer
x = 1,869,397,738.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.