Finding the Fourth Proportional to 135,715,666,451.21, 187,296,125,376.03 and 74,748,021,542.64
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Solution
The fourth proportional to 135,715,666,451.21, 187,296,125,376.03 and 74,748,021,542.64 is: 103,156,954,392.54
Step by Step Solution
- Step 1: Write the proportion equation
135,715,666,451.21 : 187,296,125,376.03 = 74,748,021,542.64 : x - Step 2: Convert to fraction form
135,715,666,451.21/187,296,125,376.03 = 74,748,021,542.64/x - Step 3: Cross multiply
135,715,666,451.21x = 187,296,125,376.03 × 74,748,021,542.64 - Step 4: Simplify right side
135,715,666,451.21x = 14,000,014,814,460,493,430,784 - Step 5: Solve for x
x = 14,000,014,814,460,493,430,784/135,715,666,451.21 - Step 6: Final answer
x = 103,156,954,392.54
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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.