Finding the Fourth Proportional to 19,812,088.65, 29,721,085.44 and 7,031,523.09
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Solution
The fourth proportional to 19,812,088.65, 29,721,085.44 and 7,031,523.09 is: 10,548,332.50
Step by Step Solution
- Step 1: Write the proportion equation
19,812,088.65 : 29,721,085.44 = 7,031,523.09 : x - Step 2: Convert to fraction form
19,812,088.65/29,721,085.44 = 7,031,523.09/x - Step 3: Cross multiply
19,812,088.65x = 29,721,085.44 × 7,031,523.09 - Step 4: Simplify right side
19,812,088.65x = 208,984,498,531,222.81 - Step 5: Solve for x
x = 208,984,498,531,222.81/19,812,088.65 - Step 6: Final answer
x = 10,548,332.50
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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.