Finding the Fourth Proportional to 70,590,220.20, 105,885,330.30 and 46,403,749.80
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Solution
The fourth proportional to 70,590,220.20, 105,885,330.30 and 46,403,749.80 is: 69,605,624.70
Step by Step Solution
- Step 1: Write the proportion equation
70,590,220.20 : 105,885,330.30 = 46,403,749.80 : x - Step 2: Convert to fraction form
70,590,220.20/105,885,330.30 = 46,403,749.80/x - Step 3: Cross multiply
70,590,220.20x = 105,885,330.30 × 46,403,749.80 - Step 4: Simplify right side
70,590,220.20x = 4,913,476,374,731,558 - Step 5: Solve for x
x = 4,913,476,374,731,558/70,590,220.20 - Step 6: Final answer
x = 69,605,624.70
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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.