Finding the Fourth Proportional to 691,096,368.35, 1,036,644,552.53 and 230,974,750.55
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Solution
The fourth proportional to 691,096,368.35, 1,036,644,552.53 and 230,974,750.55 is: 346,462,125.83
Step by Step Solution
- Step 1: Write the proportion equation
691,096,368.35 : 1,036,644,552.53 = 230,974,750.55 : x - Step 2: Convert to fraction form
691,096,368.35/1,036,644,552.53 = 230,974,750.55/x - Step 3: Cross multiply
691,096,368.35x = 1,036,644,552.53 × 230,974,750.55 - Step 4: Simplify right side
691,096,368.35x = 239,438,716,929,633,120 - Step 5: Solve for x
x = 239,438,716,929,633,120/691,096,368.35 - Step 6: Final answer
x = 346,462,125.83
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Double scale
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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.