Finding the Fourth Proportional to 10,518,353.28, 15,779,894.40 and 3,330,316.80
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Solution
The fourth proportional to 10,518,353.28, 15,779,894.40 and 3,330,316.80 is: 4,996,223.84
Step by Step Solution
- Step 1: Write the proportion equation
10,518,353.28 : 15,779,894.40 = 3,330,316.80 : x - Step 2: Convert to fraction form
10,518,353.28/15,779,894.40 = 3,330,316.80/x - Step 3: Cross multiply
10,518,353.28x = 15,779,894.40 × 3,330,316.80 - Step 4: Simplify right side
10,518,353.28x = 52,552,047,422,545.92 - Step 5: Solve for x
x = 52,552,047,422,545.92/10,518,353.28 - Step 6: Final answer
x = 4,996,223.84
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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.