Finding the Fourth Proportional to 909,169,318.36, 1,363,802,660.16 and 287,337,246.40
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Solution
The fourth proportional to 909,169,318.36, 1,363,802,660.16 and 287,337,246.40 is: 431,021,255.44
Step by Step Solution
- Step 1: Write the proportion equation
909,169,318.36 : 1,363,802,660.16 = 287,337,246.40 : x - Step 2: Convert to fraction form
909,169,318.36/1,363,802,660.16 = 287,337,246.40/x - Step 3: Cross multiply
909,169,318.36x = 1,363,802,660.16 × 287,337,246.40 - Step 4: Simplify right side
909,169,318.36x = 391,871,301,003,369,344 - Step 5: Solve for x
x = 391,871,301,003,369,344/909,169,318.36 - Step 6: Final answer
x = 431,021,255.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.