Finding the Fourth Proportional to 425,489,428.50, 636,925,117.74 and 277,618,586.14
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Solution
The fourth proportional to 425,489,428.50, 636,925,117.74 and 277,618,586.14 is: 415,573,781.20
Step by Step Solution
- Step 1: Write the proportion equation
425,489,428.50 : 636,925,117.74 = 277,618,586.14 : x - Step 2: Convert to fraction form
425,489,428.50/636,925,117.74 = 277,618,586.14/x - Step 3: Cross multiply
425,489,428.50x = 636,925,117.74 × 277,618,586.14 - Step 4: Simplify right side
425,489,428.50x = 176,822,250,664,031,840 - Step 5: Solve for x
x = 176,822,250,664,031,840/425,489,428.50 - Step 6: Final answer
x = 415,573,781.20
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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.