Finding the Third Proportional to 390,199,790 and 531,475,995
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Solution
The third proportional to 390,199,790 and 531,475,995 is: 723,902,832.60
Step by Step Solution
- Step 1: Write the proportion equation
390,199,790 : 531,475,995 = 531,475,995 : x - Step 2: Convert to fraction form
390,199,790/531,475,995 = 531,475,995/x - Step 3: Cross multiply
390,199,790x = 531,475,995 × 531,475,995 - Step 4: Simplify right side
390,199,790x = 282,466,733,261,240,032 - Step 5: Solve for x
x = 282,466,733,261,240,032/390,199,790 - Step 6: Final answer
x = 723,902,832.60
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These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.