Finding the Fourth Proportional to 77,384,805.70, 115,909,246.95 and 63,947,877.70
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Solution
The fourth proportional to 77,384,805.70, 115,909,246.95 and 63,947,877.70 is: 95,783,019.43
Step by Step Solution
- Step 1: Write the proportion equation
77,384,805.70 : 115,909,246.95 = 63,947,877.70 : x - Step 2: Convert to fraction form
77,384,805.70/115,909,246.95 = 63,947,877.70/x - Step 3: Cross multiply
77,384,805.70x = 115,909,246.95 × 63,947,877.70 - Step 4: Simplify right side
77,384,805.70x = 7,412,150,348,257,699 - Step 5: Solve for x
x = 7,412,150,348,257,699/77,384,805.70 - Step 6: Final answer
x = 95,783,019.43
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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.