Finding the Fourth Proportional to 257,934,270.96, 386,829,586.44 and 85,424,536.08
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Solution
The fourth proportional to 257,934,270.96, 386,829,586.44 and 85,424,536.08 is: 128,113,018.25
Step by Step Solution
- Step 1: Write the proportion equation
257,934,270.96 : 386,829,586.44 = 85,424,536.08 : x - Step 2: Convert to fraction form
257,934,270.96/386,829,586.44 = 85,424,536.08/x - Step 3: Cross multiply
257,934,270.96x = 386,829,586.44 × 85,424,536.08 - Step 4: Simplify right side
257,934,270.96x = 33,044,737,963,655,256 - Step 5: Solve for x
x = 33,044,737,963,655,256/257,934,270.96 - Step 6: Final answer
x = 128,113,018.25
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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.