Finding the Fourth Proportional to 3,168,343,720.40, 4,752,515,580.60 and 2,896,021,979.60
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Solution
The fourth proportional to 3,168,343,720.40, 4,752,515,580.60 and 2,896,021,979.60 is: 4,344,032,969.40
Step by Step Solution
- Step 1: Write the proportion equation
3,168,343,720.40 : 4,752,515,580.60 = 2,896,021,979.60 : x - Step 2: Convert to fraction form
3,168,343,720.40/4,752,515,580.60 = 2,896,021,979.60/x - Step 3: Cross multiply
3,168,343,720.40x = 4,752,515,580.60 × 2,896,021,979.60 - Step 4: Simplify right side
3,168,343,720.40x = 13,763,389,579,809,056,768 - Step 5: Solve for x
x = 13,763,389,579,809,056,768/3,168,343,720.40 - Step 6: Final answer
x = 4,344,032,969.40
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1.5x scale
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.