Finding the Fourth Proportional to 813,746,775.57, 1,220,620,163.35 and 239,318,103.57
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Solution
The fourth proportional to 813,746,775.57, 1,220,620,163.35 and 239,318,103.57 is: 358,977,155.35
Step by Step Solution
- Step 1: Write the proportion equation
813,746,775.57 : 1,220,620,163.35 = 239,318,103.57 : x - Step 2: Convert to fraction form
813,746,775.57/1,220,620,163.35 = 239,318,103.57/x - Step 3: Cross multiply
813,746,775.57x = 1,220,620,163.35 × 239,318,103.57 - Step 4: Simplify right side
813,746,775.57x = 292,116,502,672,225,600 - Step 5: Solve for x
x = 292,116,502,672,225,600/813,746,775.57 - Step 6: Final answer
x = 358,977,155.35
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Similar ratio
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1.5x scale
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.