Finding the Fourth Proportional to 190,994,291.78, 286,562,376.18 and 132,671,239.10
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Solution
The fourth proportional to 190,994,291.78, 286,562,376.18 and 132,671,239.10 is: 199,056,134.99
Step by Step Solution
- Step 1: Write the proportion equation
190,994,291.78 : 286,562,376.18 = 132,671,239.10 : x - Step 2: Convert to fraction form
190,994,291.78/286,562,376.18 = 132,671,239.10/x - Step 3: Cross multiply
190,994,291.78x = 286,562,376.18 × 132,671,239.10 - Step 4: Simplify right side
190,994,291.78x = 38,018,585,527,240,920 - Step 5: Solve for x
x = 38,018,585,527,240,920/190,994,291.78 - Step 6: Final answer
x = 199,056,134.99
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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.