Finding the Fourth Proportional to 22,884,973.09, 31,581,832.34 and 12,430,986.13
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Solution
The fourth proportional to 22,884,973.09, 31,581,832.34 and 12,430,986.13 is: 17,155,070.20
Step by Step Solution
- Step 1: Write the proportion equation
22,884,973.09 : 31,581,832.34 = 12,430,986.13 : x - Step 2: Convert to fraction form
22,884,973.09/31,581,832.34 = 12,430,986.13/x - Step 3: Cross multiply
22,884,973.09x = 31,581,832.34 × 12,430,986.13 - Step 4: Simplify right side
22,884,973.09x = 392,593,319,778,525.44 - Step 5: Solve for x
x = 392,593,319,778,525.44/22,884,973.09 - Step 6: Final answer
x = 17,155,070.20
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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.