Finding the Fourth Proportional to 1,050,203,136.18, 1,449,279,848.70 and 580,300,347.18
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Solution
The fourth proportional to 1,050,203,136.18, 1,449,279,848.70 and 580,300,347.18 is: 800,814,214.31
Step by Step Solution
- Step 1: Write the proportion equation
1,050,203,136.18 : 1,449,279,848.70 = 580,300,347.18 : x - Step 2: Convert to fraction form
1,050,203,136.18/1,449,279,848.70 = 580,300,347.18/x - Step 3: Cross multiply
1,050,203,136.18x = 1,449,279,848.70 × 580,300,347.18 - Step 4: Simplify right side
1,050,203,136.18x = 841,017,599,361,587,840 - Step 5: Solve for x
x = 841,017,599,361,587,840/1,050,203,136.18 - Step 6: Final answer
x = 800,814,214.31
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Double scale
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1.5x scale
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.