Finding the Fourth Proportional to 113,026,811.65, 155,966,339.11 and 63,457,504.09
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Solution
The fourth proportional to 113,026,811.65, 155,966,339.11 and 63,457,504.09 is: 87,565,370.18
Step by Step Solution
- Step 1: Write the proportion equation
113,026,811.65 : 155,966,339.11 = 63,457,504.09 : x - Step 2: Convert to fraction form
113,026,811.65/155,966,339.11 = 63,457,504.09/x - Step 3: Cross multiply
113,026,811.65x = 155,966,339.11 × 63,457,504.09 - Step 4: Simplify right side
113,026,811.65x = 9,897,234,602,206,424 - Step 5: Solve for x
x = 9,897,234,602,206,424/113,026,811.65 - Step 6: Final answer
x = 87,565,370.18
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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.