Finding the Fourth Proportional to 16,913,879.68, 23,341,325.16 and 9,178,988.80
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Solution
The fourth proportional to 16,913,879.68, 23,341,325.16 and 9,178,988.80 is: 12,667,097.45
Step by Step Solution
- Step 1: Write the proportion equation
16,913,879.68 : 23,341,325.16 = 9,178,988.80 : x - Step 2: Convert to fraction form
16,913,879.68/23,341,325.16 = 9,178,988.80/x - Step 3: Cross multiply
16,913,879.68x = 23,341,325.16 × 9,178,988.80 - Step 4: Simplify right side
16,913,879.68x = 214,249,762,220,798.22 - Step 5: Solve for x
x = 214,249,762,220,798.22/16,913,879.68 - Step 6: Final answer
x = 12,667,097.45
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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.