Finding the Fourth Proportional to 930,860,137.52, 1,284,596,889.01 and 513,187,369.59
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Solution
The fourth proportional to 930,860,137.52, 1,284,596,889.01 and 513,187,369.59 is: 708,204,027.53
Step by Step Solution
- Step 1: Write the proportion equation
930,860,137.52 : 1,284,596,889.01 = 513,187,369.59 : x - Step 2: Convert to fraction form
930,860,137.52/1,284,596,889.01 = 513,187,369.59/x - Step 3: Cross multiply
930,860,137.52x = 1,284,596,889.01 × 513,187,369.59 - Step 4: Simplify right side
930,860,137.52x = 659,238,898,453,256,064 - Step 5: Solve for x
x = 659,238,898,453,256,064/930,860,137.52 - Step 6: Final answer
x = 708,204,027.53
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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.