Finding the Fourth Proportional to 7,742,069.08, 10,684,330.12 and 4,257,672.77
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Solution
The fourth proportional to 7,742,069.08, 10,684,330.12 and 4,257,672.77 is: 5,875,739.53
Step by Step Solution
- Step 1: Write the proportion equation
7,742,069.08 : 10,684,330.12 = 4,257,672.77 : x - Step 2: Convert to fraction form
7,742,069.08/10,684,330.12 = 4,257,672.77/x - Step 3: Cross multiply
7,742,069.08x = 10,684,330.12 × 4,257,672.77 - Step 4: Simplify right side
7,742,069.08x = 45,490,381,353,548.99 - Step 5: Solve for x
x = 45,490,381,353,548.99/7,742,069.08 - Step 6: Final answer
x = 5,875,739.53
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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.