Finding the Fourth Proportional to 19,488,119.16, 26,865,879.83 and 13,285,205.79
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Solution
The fourth proportional to 19,488,119.16, 26,865,879.83 and 13,285,205.79 is: 18,314,683.89
Step by Step Solution
- Step 1: Write the proportion equation
19,488,119.16 : 26,865,879.83 = 13,285,205.79 : x - Step 2: Convert to fraction form
19,488,119.16/26,865,879.83 = 13,285,205.79/x - Step 3: Cross multiply
19,488,119.16x = 26,865,879.83 × 13,285,205.79 - Step 4: Simplify right side
19,488,119.16x = 356,918,742,153,606.69 - Step 5: Solve for x
x = 356,918,742,153,606.69/19,488,119.16 - Step 6: Final answer
x = 18,314,683.89
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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.