Finding the Fourth Proportional to 7,806,656.25, 10,779,798.84 and 4,906,980.99
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Solution
The fourth proportional to 7,806,656.25, 10,779,798.84 and 4,906,980.99 is: 6,775,790.59
Step by Step Solution
- Step 1: Write the proportion equation
7,806,656.25 : 10,779,798.84 = 4,906,980.99 : x - Step 2: Convert to fraction form
7,806,656.25/10,779,798.84 = 4,906,980.99/x - Step 3: Cross multiply
7,806,656.25x = 10,779,798.84 × 4,906,980.99 - Step 4: Simplify right side
7,806,656.25x = 52,896,267,983,904.05 - Step 5: Solve for x
x = 52,896,267,983,904.05/7,806,656.25 - Step 6: Final answer
x = 6,775,790.59
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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.