Finding the Fourth Proportional to 160,705,774.20, 221,767,765.74 and 87,366,948.60
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Solution
The fourth proportional to 160,705,774.20, 221,767,765.74 and 87,366,948.60 is: 120,563,017.02
Step by Step Solution
- Step 1: Write the proportion equation
160,705,774.20 : 221,767,765.74 = 87,366,948.60 : x - Step 2: Convert to fraction form
160,705,774.20/221,767,765.74 = 87,366,948.60/x - Step 3: Cross multiply
160,705,774.20x = 221,767,765.74 × 87,366,948.60 - Step 4: Simplify right side
160,705,774.20x = 19,375,172,990,543,420 - Step 5: Solve for x
x = 19,375,172,990,543,420/160,705,774.20 - Step 6: Final answer
x = 120,563,017.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.