Finding the Fourth Proportional to 779,343,447.70, 1,075,494,159.84 and 426,931,966.68
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Solution
The fourth proportional to 779,343,447.70, 1,075,494,159.84 and 426,931,966.68 is: 589,166,224.68
Step by Step Solution
- Step 1: Write the proportion equation
779,343,447.70 : 1,075,494,159.84 = 426,931,966.68 : x - Step 2: Convert to fraction form
779,343,447.70/1,075,494,159.84 = 426,931,966.68/x - Step 3: Cross multiply
779,343,447.70x = 1,075,494,159.84 × 426,931,966.68 - Step 4: Simplify right side
779,343,447.70x = 459,162,836,813,345,472 - Step 5: Solve for x
x = 459,162,836,813,345,472/779,343,447.70 - Step 6: Final answer
x = 589,166,224.68
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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.