Finding the Fourth Proportional to 12,927,947.75, 17,840,688.23 and 7,126,937.08
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Solution
The fourth proportional to 12,927,947.75, 17,840,688.23 and 7,126,937.08 is: 9,835,239.51
Step by Step Solution
- Step 1: Write the proportion equation
12,927,947.75 : 17,840,688.23 = 7,126,937.08 : x - Step 2: Convert to fraction form
12,927,947.75/17,840,688.23 = 7,126,937.08/x - Step 3: Cross multiply
12,927,947.75x = 17,840,688.23 × 7,126,937.08 - Step 4: Simplify right side
12,927,947.75x = 127,149,462,398,870.17 - Step 5: Solve for x
x = 127,149,462,398,870.17/12,927,947.75 - Step 6: Final answer
x = 9,835,239.51
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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.