Finding the Fourth Proportional to 915,129,749.44, 1,245,984,084.48 and 912,224,095.84
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Solution
The fourth proportional to 915,129,749.44, 1,245,984,084.48 and 912,224,095.84 is: 1,242,027,926.19
Step by Step Solution
- Step 1: Write the proportion equation
915,129,749.44 : 1,245,984,084.48 = 912,224,095.84 : x - Step 2: Convert to fraction form
915,129,749.44/1,245,984,084.48 = 912,224,095.84/x - Step 3: Cross multiply
915,129,749.44x = 1,245,984,084.48 × 912,224,095.84 - Step 4: Simplify right side
915,129,749.44x = 1,136,616,704,895,798,272 - Step 5: Solve for x
x = 1,136,616,704,895,798,272/915,129,749.44 - Step 6: Final answer
x = 1,242,027,926.19
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.