Finding the Fourth Proportional to 939,697,951.80, 1,409,546,927.70 and 395,502,367.80
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Solution
The fourth proportional to 939,697,951.80, 1,409,546,927.70 and 395,502,367.80 is: 593,253,551.70
Step by Step Solution
- Step 1: Write the proportion equation
939,697,951.80 : 1,409,546,927.70 = 395,502,367.80 : x - Step 2: Convert to fraction form
939,697,951.80/1,409,546,927.70 = 395,502,367.80/x - Step 3: Cross multiply
939,697,951.80x = 1,409,546,927.70 × 395,502,367.80 - Step 4: Simplify right side
939,697,951.80x = 557,479,147,430,565,440 - Step 5: Solve for x
x = 557,479,147,430,565,440/939,697,951.80 - Step 6: Final answer
x = 593,253,551.70
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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.