Finding the Fourth Proportional to 15,496,142.19, 21,378,900.20 and 9,692,718.99
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Solution
The fourth proportional to 15,496,142.19, 21,378,900.20 and 9,692,718.99 is: 13,372,339.35
Step by Step Solution
- Step 1: Write the proportion equation
15,496,142.19 : 21,378,900.20 = 9,692,718.99 : x - Step 2: Convert to fraction form
15,496,142.19/21,378,900.20 = 9,692,718.99/x - Step 3: Cross multiply
15,496,142.19x = 21,378,900.20 × 9,692,718.99 - Step 4: Simplify right side
15,496,142.19x = 207,219,671,953,854.78 - Step 5: Solve for x
x = 207,219,671,953,854.78/15,496,142.19 - Step 6: Final answer
x = 13,372,339.35
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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.