Finding the Fourth Proportional to 40,780,029.12, 56,276,437.05 and 22,195,302.51
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Solution
The fourth proportional to 40,780,029.12, 56,276,437.05 and 22,195,302.51 is: 30,629,515.76
Step by Step Solution
- Step 1: Write the proportion equation
40,780,029.12 : 56,276,437.05 = 22,195,302.51 : x - Step 2: Convert to fraction form
40,780,029.12/56,276,437.05 = 22,195,302.51/x - Step 3: Cross multiply
40,780,029.12x = 56,276,437.05 × 22,195,302.51 - Step 4: Simplify right side
40,780,029.12x = 1,249,072,544,509,722 - Step 5: Solve for x
x = 1,249,072,544,509,722/40,780,029.12 - Step 6: Final answer
x = 30,629,515.76
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1.5x scale
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.