Finding the Fourth Proportional to 542,593,998.90, 813,890,998.35 and 521,430,837.30
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Solution
The fourth proportional to 542,593,998.90, 813,890,998.35 and 521,430,837.30 is: 782,146,255.95
Step by Step Solution
- Step 1: Write the proportion equation
542,593,998.90 : 813,890,998.35 = 521,430,837.30 : x - Step 2: Convert to fraction form
542,593,998.90/813,890,998.35 = 521,430,837.30/x - Step 3: Cross multiply
542,593,998.90x = 813,890,998.35 × 521,430,837.30 - Step 4: Simplify right side
542,593,998.90x = 424,387,864,740,573,440 - Step 5: Solve for x
x = 424,387,864,740,573,440/542,593,998.90 - Step 6: Final answer
x = 782,146,255.95
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1.5x scale
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.