Finding the Fourth Proportional to 1,455,306,779.14, 2,182,725,722.31 and 406,072,125.70
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Solution
The fourth proportional to 1,455,306,779.14, 2,182,725,722.31 and 406,072,125.70 is: 609,042,771.31
Step by Step Solution
- Step 1: Write the proportion equation
1,455,306,779.14 : 2,182,725,722.31 = 406,072,125.70 : x - Step 2: Convert to fraction form
1,455,306,779.14/2,182,725,722.31 = 406,072,125.70/x - Step 3: Cross multiply
1,455,306,779.14x = 2,182,725,722.31 × 406,072,125.70 - Step 4: Simplify right side
1,455,306,779.14x = 886,344,073,878,489,600 - Step 5: Solve for x
x = 886,344,073,878,489,600/1,455,306,779.14 - Step 6: Final answer
x = 609,042,771.31
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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.