Finding the Fourth Proportional to 97,009,802.80, 145,514,704.20 and 66,398,801.20
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Solution
The fourth proportional to 97,009,802.80, 145,514,704.20 and 66,398,801.20 is: 99,598,201.80
Step by Step Solution
- Step 1: Write the proportion equation
97,009,802.80 : 145,514,704.20 = 66,398,801.20 : x - Step 2: Convert to fraction form
97,009,802.80/145,514,704.20 = 66,398,801.20/x - Step 3: Cross multiply
97,009,802.80x = 145,514,704.20 × 66,398,801.20 - Step 4: Simplify right side
97,009,802.80x = 9,662,001,915,852,604 - Step 5: Solve for x
x = 9,662,001,915,852,604/97,009,802.80 - Step 6: Final answer
x = 99,598,201.80
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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.