Finding the Fourth Proportional to 1,487,115,177,129.40, 2,231,691,705,663.20 and 519,023,617,531.20
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Solution
The fourth proportional to 1,487,115,177,129.40, 2,231,691,705,663.20 and 519,023,617,531.20 is: 778,891,050,337.86
Step by Step Solution
- Step 1: Write the proportion equation
1,487,115,177,129.40 : 2,231,691,705,663.20 = 519,023,617,531.20 : x - Step 2: Convert to fraction form
1,487,115,177,129.40/2,231,691,705,663.20 = 519,023,617,531.20/x - Step 3: Cross multiply
1,487,115,177,129.40x = 2,231,691,705,663.20 × 519,023,617,531.20 - Step 4: Simplify right side
1,487,115,177,129.40x = 1,158,300,702,287,688,162,607,104 - Step 5: Solve for x
x = 1,158,300,702,287,688,162,607,104/1,487,115,177,129.40 - Step 6: Final answer
x = 778,891,050,337.86
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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.