Finding the Fourth Proportional to 935,748,447.54, 1,291,328,121.29 and 512,354,416.09
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Solution
The fourth proportional to 935,748,447.54, 1,291,328,121.29 and 512,354,416.09 is: 707,046,500.90
Step by Step Solution
- Step 1: Write the proportion equation
935,748,447.54 : 1,291,328,121.29 = 512,354,416.09 : x - Step 2: Convert to fraction form
935,748,447.54/1,291,328,121.29 = 512,354,416.09/x - Step 3: Cross multiply
935,748,447.54x = 1,291,328,121.29 × 512,354,416.09 - Step 4: Simplify right side
935,748,447.54x = 661,617,665,557,104,896 - Step 5: Solve for x
x = 661,617,665,557,104,896/935,748,447.54 - Step 6: Final answer
x = 707,046,500.90
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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.