Finding the Fourth Proportional to 39,869,979.20, 59,804,968.80 and 19,714,587.20
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Solution
The fourth proportional to 39,869,979.20, 59,804,968.80 and 19,714,587.20 is: 29,571,880.80
Step by Step Solution
- Step 1: Write the proportion equation
39,869,979.20 : 59,804,968.80 = 19,714,587.20 : x - Step 2: Convert to fraction form
39,869,979.20/59,804,968.80 = 19,714,587.20/x - Step 3: Cross multiply
39,869,979.20x = 59,804,968.80 × 19,714,587.20 - Step 4: Simplify right side
39,869,979.20x = 1,179,030,272,400,879.25 - Step 5: Solve for x
x = 1,179,030,272,400,879.25/39,869,979.20 - Step 6: Final answer
x = 29,571,880.80
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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.