Finding the Fourth Proportional to 84,309,620.15, 116,311,649.08 and 56,441,309.08
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Solution
The fourth proportional to 84,309,620.15, 116,311,649.08 and 56,441,309.08 is: 77,865,156.12
Step by Step Solution
- Step 1: Write the proportion equation
84,309,620.15 : 116,311,649.08 = 56,441,309.08 : x - Step 2: Convert to fraction form
84,309,620.15/116,311,649.08 = 56,441,309.08/x - Step 3: Cross multiply
84,309,620.15x = 116,311,649.08 × 56,441,309.08 - Step 4: Simplify right side
84,309,620.15x = 6,564,781,735,328,777 - Step 5: Solve for x
x = 6,564,781,735,328,777/84,309,620.15 - Step 6: Final answer
x = 77,865,156.12
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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.