Finding the Fourth Proportional to 57,092,176.08, 78,787,276.76 and 30,986,690.88
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Solution
The fourth proportional to 57,092,176.08, 78,787,276.76 and 30,986,690.88 is: 42,761,673.45
Step by Step Solution
- Step 1: Write the proportion equation
57,092,176.08 : 78,787,276.76 = 30,986,690.88 : x - Step 2: Convert to fraction form
57,092,176.08/78,787,276.76 = 30,986,690.88/x - Step 3: Cross multiply
57,092,176.08x = 78,787,276.76 × 30,986,690.88 - Step 4: Simplify right side
57,092,176.08x = 2,441,356,990,239,128 - Step 5: Solve for x
x = 2,441,356,990,239,128/57,092,176.08 - Step 6: Final answer
x = 42,761,673.45
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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.