Finding the Fourth Proportional to 403,708,609.04, 557,118,124.61 and 218,069,706.74
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Solution
The fourth proportional to 403,708,609.04, 557,118,124.61 and 218,069,706.74 is: 300,936,327.17
Step by Step Solution
- Step 1: Write the proportion equation
403,708,609.04 : 557,118,124.61 = 218,069,706.74 : x - Step 2: Convert to fraction form
403,708,609.04/557,118,124.61 = 218,069,706.74/x - Step 3: Cross multiply
403,708,609.04x = 557,118,124.61 × 218,069,706.74 - Step 4: Simplify right side
403,708,609.04x = 121,490,586,049,365,552 - Step 5: Solve for x
x = 121,490,586,049,365,552/403,708,609.04 - Step 6: Final answer
x = 300,936,327.17
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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.