Finding the Fourth Proportional to 10,963,202.79, 15,128,878.77 and 6,316,997.43
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Solution
The fourth proportional to 10,963,202.79, 15,128,878.77 and 6,316,997.43 is: 8,717,259.92
Step by Step Solution
- Step 1: Write the proportion equation
10,963,202.79 : 15,128,878.77 = 6,316,997.43 : x - Step 2: Convert to fraction form
10,963,202.79/15,128,878.77 = 6,316,997.43/x - Step 3: Cross multiply
10,963,202.79x = 15,128,878.77 × 6,316,997.43 - Step 4: Simplify right side
10,963,202.79x = 95,569,088,308,871.55 - Step 5: Solve for x
x = 95,569,088,308,871.55/10,963,202.79 - Step 6: Final answer
x = 8,717,259.92
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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.