Finding the Fourth Proportional to 76,946,464.96, 106,186,461.06 and 42,139,397.68
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Solution
The fourth proportional to 76,946,464.96, 106,186,461.06 and 42,139,397.68 is: 58,152,554.68
Step by Step Solution
- Step 1: Write the proportion equation
76,946,464.96 : 106,186,461.06 = 42,139,397.68 : x - Step 2: Convert to fraction form
76,946,464.96/106,186,461.06 = 42,139,397.68/x - Step 3: Cross multiply
76,946,464.96x = 106,186,461.06 × 42,139,397.68 - Step 4: Simplify right side
76,946,464.96x = 4,474,633,510,731,731 - Step 5: Solve for x
x = 4,474,633,510,731,731/76,946,464.96 - Step 6: Final answer
x = 58,152,554.68
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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.