Finding the Fourth Proportional to 7,427,579.91, 10,249,547.07 and 4,119,561.99
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Solution
The fourth proportional to 7,427,579.91, 10,249,547.07 and 4,119,561.99 is: 5,684,710.91
Step by Step Solution
- Step 1: Write the proportion equation
7,427,579.91 : 10,249,547.07 = 4,119,561.99 : x - Step 2: Convert to fraction form
7,427,579.91/10,249,547.07 = 4,119,561.99/x - Step 3: Cross multiply
7,427,579.91x = 10,249,547.07 × 4,119,561.99 - Step 4: Simplify right side
7,427,579.91x = 42,223,644,524,287.88 - Step 5: Solve for x
x = 42,223,644,524,287.88/7,427,579.91 - Step 6: Final answer
x = 5,684,710.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.