Finding the Fourth Proportional to 217,151,390.61, 299,670,925.14 and 118,032,371.19
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Solution
The fourth proportional to 217,151,390.61, 299,670,925.14 and 118,032,371.19 is: 162,885,762.65
Step by Step Solution
- Step 1: Write the proportion equation
217,151,390.61 : 299,670,925.14 = 118,032,371.19 : x - Step 2: Convert to fraction form
217,151,390.61/299,670,925.14 = 118,032,371.19/x - Step 3: Cross multiply
217,151,390.61x = 299,670,925.14 × 118,032,371.19 - Step 4: Simplify right side
217,151,390.61x = 35,370,869,870,975,180 - Step 5: Solve for x
x = 35,370,869,870,975,180/217,151,390.61 - Step 6: Final answer
x = 162,885,762.65
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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.