Finding the Fourth Proportional to 478,778,170.74, 717,127,942.68 and 293,984,718.90
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Solution
The fourth proportional to 478,778,170.74, 717,127,942.68 and 293,984,718.90 is: 440,338,907.51
Step by Step Solution
- Step 1: Write the proportion equation
478,778,170.74 : 717,127,942.68 = 293,984,718.90 : x - Step 2: Convert to fraction form
478,778,170.74/717,127,942.68 = 293,984,718.90/x - Step 3: Cross multiply
478,778,170.74x = 717,127,942.68 × 293,984,718.90 - Step 4: Simplify right side
478,778,170.74x = 210,824,656,644,115,072 - Step 5: Solve for x
x = 210,824,656,644,115,072/478,778,170.74 - Step 6: Final answer
x = 440,338,907.51
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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.