Finding the Fourth Proportional to 42,875,710.26, 64,313,438.13 and 12,170,315.60
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Solution
The fourth proportional to 42,875,710.26, 64,313,438.13 and 12,170,315.60 is: 18,255,437.28
Step by Step Solution
- Step 1: Write the proportion equation
42,875,710.26 : 64,313,438.13 = 12,170,315.60 : x - Step 2: Convert to fraction form
42,875,710.26/64,313,438.13 = 12,170,315.60/x - Step 3: Cross multiply
42,875,710.26x = 64,313,438.13 × 12,170,315.60 - Step 4: Simplify right side
42,875,710.26x = 782,714,839,363,173.88 - Step 5: Solve for x
x = 782,714,839,363,173.88/42,875,710.26 - Step 6: Final answer
x = 18,255,437.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.