Finding the Fourth Proportional to 18,438,688.20, 27,658,032.30 and 6,924,133.20
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Solution
The fourth proportional to 18,438,688.20, 27,658,032.30 and 6,924,133.20 is: 10,386,199.80
Step by Step Solution
- Step 1: Write the proportion equation
18,438,688.20 : 27,658,032.30 = 6,924,133.20 : x - Step 2: Convert to fraction form
18,438,688.20/27,658,032.30 = 6,924,133.20/x - Step 3: Cross multiply
18,438,688.20x = 27,658,032.30 × 6,924,133.20 - Step 4: Simplify right side
18,438,688.20x = 191,507,899,695,102.38 - Step 5: Solve for x
x = 191,507,899,695,102.38/18,438,688.20 - Step 6: Final answer
x = 10,386,199.80
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1.5x scale
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.