Finding the Fourth Proportional to 761,952,646.84, 1,143,042,541.08 and 270,624,638.56
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Solution
The fourth proportional to 761,952,646.84, 1,143,042,541.08 and 270,624,638.56 is: 405,977,295.07
Step by Step Solution
- Step 1: Write the proportion equation
761,952,646.84 : 1,143,042,541.08 = 270,624,638.56 : x - Step 2: Convert to fraction form
761,952,646.84/1,143,042,541.08 = 270,624,638.56/x - Step 3: Cross multiply
761,952,646.84x = 1,143,042,541.08 × 270,624,638.56 - Step 4: Simplify right side
761,952,646.84x = 309,335,474,538,478,912 - Step 5: Solve for x
x = 309,335,474,538,478,912/761,952,646.84 - Step 6: Final answer
x = 405,977,295.07
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1.5x scale
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.