Finding the Fourth Proportional to 15,516,675.42, 21,411,479.40 and 8,641,797.18
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Solution
The fourth proportional to 15,516,675.42, 21,411,479.40 and 8,641,797.18 is: 11,924,826.50
Step by Step Solution
- Step 1: Write the proportion equation
15,516,675.42 : 21,411,479.40 = 8,641,797.18 : x - Step 2: Convert to fraction form
15,516,675.42/21,411,479.40 = 8,641,797.18/x - Step 3: Cross multiply
15,516,675.42x = 21,411,479.40 × 8,641,797.18 - Step 4: Simplify right side
15,516,675.42x = 185,033,662,298,548.06 - Step 5: Solve for x
x = 185,033,662,298,548.06/15,516,675.42 - Step 6: Final answer
x = 11,924,826.50
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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.