Finding the Fourth Proportional to 65,138,541.15, 97,710,953.94 and 21,418,331.67
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Solution
The fourth proportional to 65,138,541.15, 97,710,953.94 and 21,418,331.67 is: 32,128,530.70
Step by Step Solution
- Step 1: Write the proportion equation
65,138,541.15 : 97,710,953.94 = 21,418,331.67 : x - Step 2: Convert to fraction form
65,138,541.15/97,710,953.94 = 21,418,331.67/x - Step 3: Cross multiply
65,138,541.15x = 97,710,953.94 × 21,418,331.67 - Step 4: Simplify right side
65,138,541.15x = 2,092,805,619,279,013.50 - Step 5: Solve for x
x = 2,092,805,619,279,013.50/65,138,541.15 - Step 6: Final answer
x = 32,128,530.70
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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.