Finding the Fourth Proportional to 11,151,970.99, 15,389,985.12 and 6,257,555.07
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Solution
The fourth proportional to 11,151,970.99, 15,389,985.12 and 6,257,555.07 is: 8,635,574.77
Step by Step Solution
- Step 1: Write the proportion equation
11,151,970.99 : 15,389,985.12 = 6,257,555.07 : x - Step 2: Convert to fraction form
11,151,970.99/15,389,985.12 = 6,257,555.07/x - Step 3: Cross multiply
11,151,970.99x = 15,389,985.12 × 6,257,555.07 - Step 4: Simplify right side
11,151,970.99x = 96,303,679,333,702.30 - Step 5: Solve for x
x = 96,303,679,333,702.30/11,151,970.99 - Step 6: Final answer
x = 8,635,574.77
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1.5x scale
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.