Finding the Fourth Proportional to 105,312,155.20, 157,968,232.80 and 88,306,043.20
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Solution
The fourth proportional to 105,312,155.20, 157,968,232.80 and 88,306,043.20 is: 132,459,064.80
Step by Step Solution
- Step 1: Write the proportion equation
105,312,155.20 : 157,968,232.80 = 88,306,043.20 : x - Step 2: Convert to fraction form
105,312,155.20/157,968,232.80 = 88,306,043.20/x - Step 3: Cross multiply
105,312,155.20x = 157,968,232.80 × 88,306,043.20 - Step 4: Simplify right side
105,312,155.20x = 13,949,549,589,864,458 - Step 5: Solve for x
x = 13,949,549,589,864,458/105,312,155.20 - Step 6: Final answer
x = 132,459,064.80
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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.