Finding the Fourth Proportional to 72,046,782.11, 99,423,372.44 and 39,006,767.09
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Solution
The fourth proportional to 72,046,782.11, 99,423,372.44 and 39,006,767.09 is: 53,828,696.00
Step by Step Solution
- Step 1: Write the proportion equation
72,046,782.11 : 99,423,372.44 = 39,006,767.09 : x - Step 2: Convert to fraction form
72,046,782.11/99,423,372.44 = 39,006,767.09/x - Step 3: Cross multiply
72,046,782.11x = 99,423,372.44 × 39,006,767.09 - Step 4: Simplify right side
72,046,782.11x = 3,878,184,332,415,480.50 - Step 5: Solve for x
x = 3,878,184,332,415,480.50/72,046,782.11 - Step 6: Final answer
x = 53,828,696.00
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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.