Finding the Fourth Proportional to 124,363,193.28, 171,532,345.32 and 107,813,726.88
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Solution
The fourth proportional to 124,363,193.28, 171,532,345.32 and 107,813,726.88 is: 148,705,906.80
Step by Step Solution
- Step 1: Write the proportion equation
124,363,193.28 : 171,532,345.32 = 107,813,726.88 : x - Step 2: Convert to fraction form
124,363,193.28/171,532,345.32 = 107,813,726.88/x - Step 3: Cross multiply
124,363,193.28x = 171,532,345.32 × 107,813,726.88 - Step 4: Simplify right side
124,363,193.28x = 18,493,541,429,416,324 - Step 5: Solve for x
x = 18,493,541,429,416,324/124,363,193.28 - Step 6: Final answer
x = 148,705,906.80
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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.