Finding the Fourth Proportional to 12,130,203.90, 16,739,762.31 and 6,623,616.99
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Solution
The fourth proportional to 12,130,203.90, 16,739,762.31 and 6,623,616.99 is: 9,140,635.64
Step by Step Solution
- Step 1: Write the proportion equation
12,130,203.90 : 16,739,762.31 = 6,623,616.99 : x - Step 2: Convert to fraction form
12,130,203.90/16,739,762.31 = 6,623,616.99/x - Step 3: Cross multiply
12,130,203.90x = 16,739,762.31 × 6,623,616.99 - Step 4: Simplify right side
12,130,203.90x = 110,877,774,045,077.66 - Step 5: Solve for x
x = 110,877,774,045,077.66/12,130,203.90 - Step 6: Final answer
x = 9,140,635.64
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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.