Finding the Fourth Proportional to 83,487,618.78, 115,199,920.99 and 47,723,548.99
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Solution
The fourth proportional to 83,487,618.78, 115,199,920.99 and 47,723,548.99 is: 65,851,070.53
Step by Step Solution
- Step 1: Write the proportion equation
83,487,618.78 : 115,199,920.99 = 47,723,548.99 : x - Step 2: Convert to fraction form
83,487,618.78/115,199,920.99 = 47,723,548.99/x - Step 3: Cross multiply
83,487,618.78x = 115,199,920.99 × 47,723,548.99 - Step 4: Simplify right side
83,487,618.78x = 5,497,749,072,603,085 - Step 5: Solve for x
x = 5,497,749,072,603,085/83,487,618.78 - Step 6: Final answer
x = 65,851,070.53
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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.