Finding the Fourth Proportional to 212,242,240.44, 292,907,642.13 and 128,617,693.02
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Solution
The fourth proportional to 212,242,240.44, 292,907,642.13 and 128,617,693.02 is: 177,500,506.59
Step by Step Solution
- Step 1: Write the proportion equation
212,242,240.44 : 292,907,642.13 = 128,617,693.02 : x - Step 2: Convert to fraction form
212,242,240.44/292,907,642.13 = 128,617,693.02/x - Step 3: Cross multiply
212,242,240.44x = 292,907,642.13 × 128,617,693.02 - Step 4: Simplify right side
212,242,240.44x = 37,673,105,198,688,360 - Step 5: Solve for x
x = 37,673,105,198,688,360/212,242,240.44 - Step 6: Final answer
x = 177,500,506.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.