Finding the Fourth Proportional to 153,950,828.99, 212,450,450.87 and 83,384,683.61
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Solution
The fourth proportional to 153,950,828.99, 212,450,450.87 and 83,384,683.61 is: 115,069,946.32
Step by Step Solution
- Step 1: Write the proportion equation
153,950,828.99 : 212,450,450.87 = 83,384,683.61 : x - Step 2: Convert to fraction form
153,950,828.99/212,450,450.87 = 83,384,683.61/x - Step 3: Cross multiply
153,950,828.99x = 212,450,450.87 × 83,384,683.61 - Step 4: Simplify right side
153,950,828.99x = 17,715,113,627,743,010 - Step 5: Solve for x
x = 17,715,113,627,743,010/153,950,828.99 - Step 6: Final answer
x = 115,069,946.32
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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.