Finding the Fourth Proportional to 13,293,373.82, 18,346,315.65 and 7,712,849.66
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Solution
The fourth proportional to 13,293,373.82, 18,346,315.65 and 7,712,849.66 is: 10,644,579.50
Step by Step Solution
- Step 1: Write the proportion equation
13,293,373.82 : 18,346,315.65 = 7,712,849.66 : x - Step 2: Convert to fraction form
13,293,373.82/18,346,315.65 = 7,712,849.66/x - Step 3: Cross multiply
13,293,373.82x = 18,346,315.65 × 7,712,849.66 - Step 4: Simplify right side
13,293,373.82x = 141,502,374,423,355.16 - Step 5: Solve for x
x = 141,502,374,423,355.16/13,293,373.82 - Step 6: Final answer
x = 10,644,579.50
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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.