Finding the Fourth Proportional to 109,632,243.80, 164,448,365.70 and 99,554,547.80
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Solution
The fourth proportional to 109,632,243.80, 164,448,365.70 and 99,554,547.80 is: 149,331,821.70
Step by Step Solution
- Step 1: Write the proportion equation
109,632,243.80 : 164,448,365.70 = 99,554,547.80 : x - Step 2: Convert to fraction form
109,632,243.80/164,448,365.70 = 99,554,547.80/x - Step 3: Cross multiply
109,632,243.80x = 164,448,365.70 × 99,554,547.80 - Step 4: Simplify right side
109,632,243.80x = 16,371,582,683,712,528 - Step 5: Solve for x
x = 16,371,582,683,712,528/109,632,243.80 - Step 6: Final answer
x = 149,331,821.70
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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.