Finding the Fourth Proportional to 76,919,200.35, 106,148,807.47 and 42,115,129.26
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Solution
The fourth proportional to 76,919,200.35, 106,148,807.47 and 42,115,129.26 is: 58,119,048.65
Step by Step Solution
- Step 1: Write the proportion equation
76,919,200.35 : 106,148,807.47 = 42,115,129.26 : x - Step 2: Convert to fraction form
76,919,200.35/106,148,807.47 = 42,115,129.26/x - Step 3: Cross multiply
76,919,200.35x = 106,148,807.47 × 42,115,129.26 - Step 4: Simplify right side
76,919,200.35x = 4,470,470,746,863,160 - Step 5: Solve for x
x = 4,470,470,746,863,160/76,919,200.35 - Step 6: Final answer
x = 58,119,048.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.