Finding the Fourth Proportional to 242,396,340.40, 363,645,637.80 and 78,621,377.68
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Solution
The fourth proportional to 242,396,340.40, 363,645,637.80 and 78,621,377.68 is: 117,948,649.65
Step by Step Solution
- Step 1: Write the proportion equation
242,396,340.40 : 363,645,637.80 = 78,621,377.68 : x - Step 2: Convert to fraction form
242,396,340.40/363,645,637.80 = 78,621,377.68/x - Step 3: Cross multiply
242,396,340.40x = 363,645,637.80 × 78,621,377.68 - Step 4: Simplify right side
242,396,340.40x = 28,590,321,031,158,288 - Step 5: Solve for x
x = 28,590,321,031,158,288/242,396,340.40 - Step 6: Final answer
x = 117,948,649.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.