Finding the Fourth Proportional to 812,583,758.34, 1,121,461,315.74 and 482,558,897.34
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Solution
The fourth proportional to 812,583,758.34, 1,121,461,315.74 and 482,558,897.34 is: 665,988,127.84
Step by Step Solution
- Step 1: Write the proportion equation
812,583,758.34 : 1,121,461,315.74 = 482,558,897.34 : x - Step 2: Convert to fraction form
812,583,758.34/1,121,461,315.74 = 482,558,897.34/x - Step 3: Cross multiply
812,583,758.34x = 1,121,461,315.74 × 482,558,897.34 - Step 4: Simplify right side
812,583,758.34x = 541,171,135,932,959,936 - Step 5: Solve for x
x = 541,171,135,932,959,936/812,583,758.34 - Step 6: Final answer
x = 665,988,127.84
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1.5x scale
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.