Finding the Fourth Proportional to 12,865,456.18, 17,754,329.60 and 7,064,237.94
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Solution
The fourth proportional to 12,865,456.18, 17,754,329.60 and 7,064,237.94 is: 9,748,648.40
Step by Step Solution
- Step 1: Write the proportion equation
12,865,456.18 : 17,754,329.60 = 7,064,237.94 : x - Step 2: Convert to fraction form
12,865,456.18/17,754,329.60 = 7,064,237.94/x - Step 3: Cross multiply
12,865,456.18x = 17,754,329.60 × 7,064,237.94 - Step 4: Simplify right side
12,865,456.18x = 125,420,808,759,585.05 - Step 5: Solve for x
x = 125,420,808,759,585.05/12,865,456.18 - Step 6: Final answer
x = 9,748,648.40
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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.