Finding the Fourth Proportional to 27,719,807.99, 38,253,588.93 and 15,329,261.07
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Solution
The fourth proportional to 27,719,807.99, 38,253,588.93 and 15,329,261.07 is: 21,154,520.69
Step by Step Solution
- Step 1: Write the proportion equation
27,719,807.99 : 38,253,588.93 = 15,329,261.07 : x - Step 2: Convert to fraction form
27,719,807.99/38,253,588.93 = 15,329,261.07/x - Step 3: Cross multiply
27,719,807.99x = 38,253,588.93 × 15,329,261.07 - Step 4: Simplify right side
27,719,807.99x = 586,399,251,572,432 - Step 5: Solve for x
x = 586,399,251,572,432/27,719,807.99 - Step 6: Final answer
x = 21,154,520.69
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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.