Finding the Fourth Proportional to 257,934,273.96, 386,829,590.94 and 85,424,539.08
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Solution
The fourth proportional to 257,934,273.96, 386,829,590.94 and 85,424,539.08 is: 128,113,022.75
Step by Step Solution
- Step 1: Write the proportion equation
257,934,273.96 : 386,829,590.94 = 85,424,539.08 : x - Step 2: Convert to fraction form
257,934,273.96/386,829,590.94 = 85,424,539.08/x - Step 3: Cross multiply
257,934,273.96x = 386,829,590.94 × 85,424,539.08 - Step 4: Simplify right side
257,934,273.96x = 33,044,739,508,554,444 - Step 5: Solve for x
x = 33,044,739,508,554,444/257,934,273.96 - Step 6: Final answer
x = 128,113,022.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.