Finding the Fourth Proportional to 18,485,431.91, 27,730,669.98 and 7,700,210.47
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Solution
The fourth proportional to 18,485,431.91, 27,730,669.98 and 7,700,210.47 is: 11,551,366.30
Step by Step Solution
- Step 1: Write the proportion equation
18,485,431.91 : 27,730,669.98 = 7,700,210.47 : x - Step 2: Convert to fraction form
18,485,431.91/27,730,669.98 = 7,700,210.47/x - Step 3: Cross multiply
18,485,431.91x = 27,730,669.98 × 7,700,210.47 - Step 4: Simplify right side
18,485,431.91x = 213,531,995,181,457.34 - Step 5: Solve for x
x = 213,531,995,181,457.34/18,485,431.91 - Step 6: Final answer
x = 11,551,366.30
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.