Finding the Fourth Proportional to 19,774,442.28, 29,637,711.12 and 8,390,976.60
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Solution
The fourth proportional to 19,774,442.28, 29,637,711.12 and 8,390,976.60 is: 12,576,301.11
Step by Step Solution
- Step 1: Write the proportion equation
19,774,442.28 : 29,637,711.12 = 8,390,976.60 : x - Step 2: Convert to fraction form
19,774,442.28/29,637,711.12 = 8,390,976.60/x - Step 3: Cross multiply
19,774,442.28x = 29,637,711.12 × 8,390,976.60 - Step 4: Simplify right side
19,774,442.28x = 248,689,340,485,479.78 - Step 5: Solve for x
x = 248,689,340,485,479.78/19,774,442.28 - Step 6: Final answer
x = 12,576,301.11
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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.