Finding the Fourth Proportional to 7,758,731.06, 10,707,381.05 and 4,320,972.09
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Solution
The fourth proportional to 7,758,731.06, 10,707,381.05 and 4,320,972.09 is: 5,963,126.49
Step by Step Solution
- Step 1: Write the proportion equation
7,758,731.06 : 10,707,381.05 = 4,320,972.09 : x - Step 2: Convert to fraction form
7,758,731.06/10,707,381.05 = 4,320,972.09/x - Step 3: Cross multiply
7,758,731.06x = 10,707,381.05 × 4,320,972.09 - Step 4: Simplify right side
7,758,731.06x = 46,266,294,674,044.90 - Step 5: Solve for x
x = 46,266,294,674,044.90/7,758,731.06 - Step 6: Final answer
x = 5,963,126.49
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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.