Finding the Fourth Proportional to 93,320,106.40, 139,980,159.60 and 74,046,512.80
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Solution
The fourth proportional to 93,320,106.40, 139,980,159.60 and 74,046,512.80 is: 111,069,769.20
Step by Step Solution
- Step 1: Write the proportion equation
93,320,106.40 : 139,980,159.60 = 74,046,512.80 : x - Step 2: Convert to fraction form
93,320,106.40/139,980,159.60 = 74,046,512.80/x - Step 3: Cross multiply
93,320,106.40x = 139,980,159.60 × 74,046,512.80 - Step 4: Simplify right side
93,320,106.40x = 10,365,042,679,567,442 - Step 5: Solve for x
x = 10,365,042,679,567,442/93,320,106.40 - Step 6: Final answer
x = 111,069,769.20
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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.