Finding the Fourth Proportional to 98,136,907.41, 135,428,953.55 and 53,482,890.07
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Solution
The fourth proportional to 98,136,907.41, 135,428,953.55 and 53,482,890.07 is: 73,806,399.91
Step by Step Solution
- Step 1: Write the proportion equation
98,136,907.41 : 135,428,953.55 = 53,482,890.07 : x - Step 2: Convert to fraction form
98,136,907.41/135,428,953.55 = 53,482,890.07/x - Step 3: Cross multiply
98,136,907.41x = 135,428,953.55 × 53,482,890.07 - Step 4: Simplify right side
98,136,907.41x = 7,243,131,834,332,642 - Step 5: Solve for x
x = 7,243,131,834,332,642/98,136,907.41 - Step 6: Final answer
x = 73,806,399.91
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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.