Finding the Fourth Proportional to 539,674,748.79, 744,751,402.88 and 292,156,103.31
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Solution
The fourth proportional to 539,674,748.79, 744,751,402.88 and 292,156,103.31 is: 403,175,557.66
Step by Step Solution
- Step 1: Write the proportion equation
539,674,748.79 : 744,751,402.88 = 292,156,103.31 : x - Step 2: Convert to fraction form
539,674,748.79/744,751,402.88 = 292,156,103.31/x - Step 3: Cross multiply
539,674,748.79x = 744,751,402.88 × 292,156,103.31 - Step 4: Simplify right side
539,674,748.79x = 217,583,667,798,615,936 - Step 5: Solve for x
x = 217,583,667,798,615,936/539,674,748.79 - Step 6: Final answer
x = 403,175,557.66
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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.