Finding the Fourth Proportional to 1,331,315,646.48, 1,997,245,837.56 and 457,803,568.08
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Solution
The fourth proportional to 1,331,315,646.48, 1,997,245,837.56 and 457,803,568.08 is: 686,799,012.08
Step by Step Solution
- Step 1: Write the proportion equation
1,331,315,646.48 : 1,997,245,837.56 = 457,803,568.08 : x - Step 2: Convert to fraction form
1,331,315,646.48/1,997,245,837.56 = 457,803,568.08/x - Step 3: Cross multiply
1,331,315,646.48x = 1,997,245,837.56 × 457,803,568.08 - Step 4: Simplify right side
1,331,315,646.48x = 914,346,270,767,896,064 - Step 5: Solve for x
x = 914,346,270,767,896,064/1,331,315,646.48 - Step 6: Final answer
x = 686,799,012.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.