Finding the Fourth Proportional to 74,891,851.20, 112,337,776.80 and 49,382,683.20
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Solution
The fourth proportional to 74,891,851.20, 112,337,776.80 and 49,382,683.20 is: 74,074,024.80
Step by Step Solution
- Step 1: Write the proportion equation
74,891,851.20 : 112,337,776.80 = 49,382,683.20 : x - Step 2: Convert to fraction form
74,891,851.20/112,337,776.80 = 49,382,683.20/x - Step 3: Cross multiply
74,891,851.20x = 112,337,776.80 × 49,382,683.20 - Step 4: Simplify right side
74,891,851.20x = 5,547,540,843,106,710 - Step 5: Solve for x
x = 5,547,540,843,106,710/74,891,851.20 - Step 6: Final answer
x = 74,074,024.80
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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.