Finding the Fourth Proportional to 1,381,050,226.98, 1,905,850,077.84 and 745,970,715.84
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Solution
The fourth proportional to 1,381,050,226.98, 1,905,850,077.84 and 745,970,715.84 is: 1,029,440,000.86
Step by Step Solution
- Step 1: Write the proportion equation
1,381,050,226.98 : 1,905,850,077.84 = 745,970,715.84 : x - Step 2: Convert to fraction form
1,381,050,226.98/1,905,850,077.84 = 745,970,715.84/x - Step 3: Cross multiply
1,381,050,226.98x = 1,905,850,077.84 × 745,970,715.84 - Step 4: Simplify right side
1,381,050,226.98x = 1,421,708,346,850,024,448 - Step 5: Solve for x
x = 1,421,708,346,850,024,448/1,381,050,226.98 - Step 6: Final answer
x = 1,029,440,000.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.