Finding the Fourth Proportional to 28,860,857.61, 39,831,946.08 and 17,695,376.07
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Solution
The fourth proportional to 28,860,857.61, 39,831,946.08 and 17,695,376.07 is: 24,422,048.54
Step by Step Solution
- Step 1: Write the proportion equation
28,860,857.61 : 39,831,946.08 = 17,695,376.07 : x - Step 2: Convert to fraction form
28,860,857.61/39,831,946.08 = 17,695,376.07/x - Step 3: Cross multiply
28,860,857.61x = 39,831,946.08 × 17,695,376.07 - Step 4: Simplify right side
28,860,857.61x = 704,841,265,485,562.25 - Step 5: Solve for x
x = 704,841,265,485,562.25/28,860,857.61 - Step 6: Final answer
x = 24,422,048.54
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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.