Finding the Fourth Proportional to 87,791,405.29, 120,875,734.02 and 74,534,360.65
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Solution
The fourth proportional to 87,791,405.29, 120,875,734.02 and 74,534,360.65 is: 102,622,751.32
Step by Step Solution
- Step 1: Write the proportion equation
87,791,405.29 : 120,875,734.02 = 74,534,360.65 : x - Step 2: Convert to fraction form
87,791,405.29/120,875,734.02 = 74,534,360.65/x - Step 3: Cross multiply
87,791,405.29x = 120,875,734.02 × 74,534,360.65 - Step 4: Simplify right side
87,791,405.29x = 9,009,395,553,280,154 - Step 5: Solve for x
x = 9,009,395,553,280,154/87,791,405.29 - Step 6: Final answer
x = 102,622,751.32
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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.