Finding the Fourth Proportional to 90,506,548.09, 124,899,136.95 and 50,808,561.49
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Solution
The fourth proportional to 90,506,548.09, 124,899,136.95 and 50,808,561.49 is: 70,115,871.32
Step by Step Solution
- Step 1: Write the proportion equation
90,506,548.09 : 124,899,136.95 = 50,808,561.49 : x - Step 2: Convert to fraction form
90,506,548.09/124,899,136.95 = 50,808,561.49/x - Step 3: Cross multiply
90,506,548.09x = 124,899,136.95 × 50,808,561.49 - Step 4: Simplify right side
90,506,548.09x = 6,345,945,479,772,006 - Step 5: Solve for x
x = 6,345,945,479,772,006/90,506,548.09 - Step 6: Final answer
x = 70,115,871.32
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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.