Finding the Fourth Proportional to 384,368,305.30, 576,552,457.95 and 319,745,079.70
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Solution
The fourth proportional to 384,368,305.30, 576,552,457.95 and 319,745,079.70 is: 479,617,619.55
Step by Step Solution
- Step 1: Write the proportion equation
384,368,305.30 : 576,552,457.95 = 319,745,079.70 : x - Step 2: Convert to fraction form
384,368,305.30/576,552,457.95 = 319,745,079.70/x - Step 3: Cross multiply
384,368,305.30x = 576,552,457.95 × 319,745,079.70 - Step 4: Simplify right side
384,368,305.30x = 184,349,811,618,453,664 - Step 5: Solve for x
x = 184,349,811,618,453,664/384,368,305.30 - Step 6: Final answer
x = 479,617,619.55
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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.