Finding the Fourth Proportional to 83,014,316.70, 124,185,551.85 and 72,936,620.70
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Solution
The fourth proportional to 83,014,316.70, 124,185,551.85 and 72,936,620.70 is: 109,109,787.95
Step by Step Solution
- Step 1: Write the proportion equation
83,014,316.70 : 124,185,551.85 = 72,936,620.70 : x - Step 2: Convert to fraction form
83,014,316.70/124,185,551.85 = 72,936,620.70/x - Step 3: Cross multiply
83,014,316.70x = 124,185,551.85 × 72,936,620.70 - Step 4: Simplify right side
83,014,316.70x = 9,057,674,491,703,634 - Step 5: Solve for x
x = 9,057,674,491,703,634/83,014,316.70 - Step 6: Final answer
x = 109,109,787.95
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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.