Finding the Fourth Proportional to 539,674,840.40, 744,751,528.84 and 292,156,194.56
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Solution
The fourth proportional to 539,674,840.40, 744,751,528.84 and 292,156,194.56 is: 403,175,683.34
Step by Step Solution
- Step 1: Write the proportion equation
539,674,840.40 : 744,751,528.84 = 292,156,194.56 : x - Step 2: Convert to fraction form
539,674,840.40/744,751,528.84 = 292,156,194.56/x - Step 3: Cross multiply
539,674,840.40x = 744,751,528.84 × 292,156,194.56 - Step 4: Simplify right side
539,674,840.40x = 217,583,772,558,636,512 - Step 5: Solve for x
x = 217,583,772,558,636,512/539,674,840.40 - Step 6: Final answer
x = 403,175,683.34
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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.