Finding the Fourth Proportional to 15,430,392.68, 23,129,386.86 and 5,191,698.12
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Solution
The fourth proportional to 15,430,392.68, 23,129,386.86 and 5,191,698.12 is: 7,782,095.82
Step by Step Solution
- Step 1: Write the proportion equation
15,430,392.68 : 23,129,386.86 = 5,191,698.12 : x - Step 2: Convert to fraction form
15,430,392.68/23,129,386.86 = 5,191,698.12/x - Step 3: Cross multiply
15,430,392.68x = 23,129,386.86 × 5,191,698.12 - Step 4: Simplify right side
15,430,392.68x = 120,080,794,277,814.70 - Step 5: Solve for x
x = 120,080,794,277,814.70/15,430,392.68 - Step 6: Final answer
x = 7,782,095.82
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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.