Finding the Fourth Proportional to 140,014,363.09, 193,219,856.09 and 77,290,497.49
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Solution
The fourth proportional to 140,014,363.09, 193,219,856.09 and 77,290,497.49 is: 106,660,905.87
Step by Step Solution
- Step 1: Write the proportion equation
140,014,363.09 : 193,219,856.09 = 77,290,497.49 : x - Step 2: Convert to fraction form
140,014,363.09/193,219,856.09 = 77,290,497.49/x - Step 3: Cross multiply
140,014,363.09x = 193,219,856.09 × 77,290,497.49 - Step 4: Simplify right side
140,014,363.09x = 14,934,058,802,142,306 - Step 5: Solve for x
x = 14,934,058,802,142,306/140,014,363.09 - Step 6: Final answer
x = 106,660,905.87
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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.