Finding the Fourth Proportional to 977,181,257.75, 1,348,519,163.13 and 531,145,670.36
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Solution
The fourth proportional to 977,181,257.75, 1,348,519,163.13 and 531,145,670.36 is: 732,985,931.94
Step by Step Solution
- Step 1: Write the proportion equation
977,181,257.75 : 1,348,519,163.13 = 531,145,670.36 : x - Step 2: Convert to fraction form
977,181,257.75/1,348,519,163.13 = 531,145,670.36/x - Step 3: Cross multiply
977,181,257.75x = 1,348,519,163.13 × 531,145,670.36 - Step 4: Simplify right side
977,181,257.75x = 716,260,114,887,247,488 - Step 5: Solve for x
x = 716,260,114,887,247,488/977,181,257.75 - Step 6: Final answer
x = 732,985,931.94
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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.