Finding the Fourth Proportional to 103,207,473.84, 142,426,272.72 and 56,797,727.76
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Solution
The fourth proportional to 103,207,473.84, 142,426,272.72 and 56,797,727.76 is: 78,380,841.65
Step by Step Solution
- Step 1: Write the proportion equation
103,207,473.84 : 142,426,272.72 = 56,797,727.76 : x - Step 2: Convert to fraction form
103,207,473.84/142,426,272.72 = 56,797,727.76/x - Step 3: Cross multiply
103,207,473.84x = 142,426,272.72 × 56,797,727.76 - Step 4: Simplify right side
103,207,473.84x = 8,089,488,663,822,074 - Step 5: Solve for x
x = 8,089,488,663,822,074/103,207,473.84 - Step 6: Final answer
x = 78,380,841.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.