Finding the Fourth Proportional to 1,259,713,053.80, 1,889,569,580.70 and 996,685,188.20
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Solution
The fourth proportional to 1,259,713,053.80, 1,889,569,580.70 and 996,685,188.20 is: 1,495,027,782.30
Step by Step Solution
- Step 1: Write the proportion equation
1,259,713,053.80 : 1,889,569,580.70 = 996,685,188.20 : x - Step 2: Convert to fraction form
1,259,713,053.80/1,889,569,580.70 = 996,685,188.20/x - Step 3: Cross multiply
1,259,713,053.80x = 1,889,569,580.70 × 996,685,188.20 - Step 4: Simplify right side
1,259,713,053.80x = 1,883,306,013,156,974,848 - Step 5: Solve for x
x = 1,883,306,013,156,974,848/1,259,713,053.80 - Step 6: Final answer
x = 1,495,027,782.30
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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.