Finding the Fourth Proportional to 21,571,078.18, 29,748,373.14 and 16,862,095.66
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Solution
The fourth proportional to 21,571,078.18, 29,748,373.14 and 16,862,095.66 is: 23,254,281.01
Step by Step Solution
- Step 1: Write the proportion equation
21,571,078.18 : 29,748,373.14 = 16,862,095.66 : x - Step 2: Convert to fraction form
21,571,078.18/29,748,373.14 = 16,862,095.66/x - Step 3: Cross multiply
21,571,078.18x = 29,748,373.14 × 16,862,095.66 - Step 4: Simplify right side
21,571,078.18x = 501,619,913,616,054.56 - Step 5: Solve for x
x = 501,619,913,616,054.56/21,571,078.18 - Step 6: Final answer
x = 23,254,281.01
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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.