Finding the Fourth Proportional to 7,828,136.19, 10,803,191.66 and 4,889,693.01
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Solution
The fourth proportional to 7,828,136.19, 10,803,191.66 and 4,889,693.01 is: 6,748,003.55
Step by Step Solution
- Step 1: Write the proportion equation
7,828,136.19 : 10,803,191.66 = 4,889,693.01 : x - Step 2: Convert to fraction form
7,828,136.19/10,803,191.66 = 4,889,693.01/x - Step 3: Cross multiply
7,828,136.19x = 10,803,191.66 × 4,889,693.01 - Step 4: Simplify right side
7,828,136.19x = 52,824,290,779,992.15 - Step 5: Solve for x
x = 52,824,290,779,992.15/7,828,136.19 - Step 6: Final answer
x = 6,748,003.55
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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.