Finding the Fourth Proportional to 77,491,603.08, 116,237,549.34 and 72,756,462.96
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Solution
The fourth proportional to 77,491,603.08, 116,237,549.34 and 72,756,462.96 is: 109,134,830.32
Step by Step Solution
- Step 1: Write the proportion equation
77,491,603.08 : 116,237,549.34 = 72,756,462.96 : x - Step 2: Convert to fraction form
77,491,603.08/116,237,549.34 = 72,756,462.96/x - Step 3: Cross multiply
77,491,603.08x = 116,237,549.34 × 72,756,462.96 - Step 4: Simplify right side
77,491,603.08x = 8,457,032,953,116,882 - Step 5: Solve for x
x = 8,457,032,953,116,882/77,491,603.08 - Step 6: Final answer
x = 109,134,830.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.