Finding the Fourth Proportional to 19,639,258.99, 27,103,018.28 and 10,937,431.59
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Solution
The fourth proportional to 19,639,258.99, 27,103,018.28 and 10,937,431.59 is: 15,094,123.89
Step by Step Solution
- Step 1: Write the proportion equation
19,639,258.99 : 27,103,018.28 = 10,937,431.59 : x - Step 2: Convert to fraction form
19,639,258.99/27,103,018.28 = 10,937,431.59/x - Step 3: Cross multiply
19,639,258.99x = 27,103,018.28 × 10,937,431.59 - Step 4: Simplify right side
19,639,258.99x = 296,437,408,320,019.50 - Step 5: Solve for x
x = 296,437,408,320,019.50/19,639,258.99 - Step 6: Final answer
x = 15,094,123.89
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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.