Finding the Fourth Proportional to 42,615,436.76, 63,968,644.70 and 18,366,330.68
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Solution
The fourth proportional to 42,615,436.76, 63,968,644.70 and 18,366,330.68 is: 27,569,101.04
Step by Step Solution
- Step 1: Write the proportion equation
42,615,436.76 : 63,968,644.70 = 18,366,330.68 : x - Step 2: Convert to fraction form
42,615,436.76/63,968,644.70 = 18,366,330.68/x - Step 3: Cross multiply
42,615,436.76x = 63,968,644.70 × 18,366,330.68 - Step 4: Simplify right side
42,615,436.76x = 1,174,869,281,711,629.50 - Step 5: Solve for x
x = 1,174,869,281,711,629.50/42,615,436.76 - Step 6: Final answer
x = 27,569,101.04
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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.