Finding the Fourth Proportional to 145,788,103.73, 201,187,945.36 and 79,712,866.19
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Solution
The fourth proportional to 145,788,103.73, 201,187,945.36 and 79,712,866.19 is: 110,003,953.39
Step by Step Solution
- Step 1: Write the proportion equation
145,788,103.73 : 201,187,945.36 = 79,712,866.19 : x - Step 2: Convert to fraction form
145,788,103.73/201,187,945.36 = 79,712,866.19/x - Step 3: Cross multiply
145,788,103.73x = 201,187,945.36 × 79,712,866.19 - Step 4: Simplify right side
145,788,103.73x = 16,037,267,768,124,524 - Step 5: Solve for x
x = 16,037,267,768,124,524/145,788,103.73 - Step 6: Final answer
x = 110,003,953.39
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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.