Finding the Fourth Proportional to 27,355,142.40, 37,746,807.68 and 15,756,478.08
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Solution
The fourth proportional to 27,355,142.40, 37,746,807.68 and 15,756,478.08 is: 21,742,045.39
Step by Step Solution
- Step 1: Write the proportion equation
27,355,142.40 : 37,746,807.68 = 15,756,478.08 : x - Step 2: Convert to fraction form
27,355,142.40/37,746,807.68 = 15,756,478.08/x - Step 3: Cross multiply
27,355,142.40x = 37,746,807.68 × 15,756,478.08 - Step 4: Simplify right side
27,355,142.40x = 594,756,747,799,895.62 - Step 5: Solve for x
x = 594,756,747,799,895.62/27,355,142.40 - Step 6: Final answer
x = 21,742,045.39
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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.