Finding the Fourth Proportional to 13,139,157.98, 19,704,171.81 and 7,312,235.06
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Solution
The fourth proportional to 13,139,157.98, 19,704,171.81 and 7,312,235.06 is: 10,965,811.98
Step by Step Solution
- Step 1: Write the proportion equation
13,139,157.98 : 19,704,171.81 = 7,312,235.06 : x - Step 2: Convert to fraction form
13,139,157.98/19,704,171.81 = 7,312,235.06/x - Step 3: Cross multiply
13,139,157.98x = 19,704,171.81 × 7,312,235.06 - Step 4: Simplify right side
13,139,157.98x = 144,081,535,937,345.66 - Step 5: Solve for x
x = 144,081,535,937,345.66/13,139,157.98 - Step 6: Final answer
x = 10,965,811.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.