Finding the Fourth Proportional to 13,065,389.48, 18,031,247.44 and 7,838,594.35
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Solution
The fourth proportional to 13,065,389.48, 18,031,247.44 and 7,838,594.35 is: 10,817,866.12
Step by Step Solution
- Step 1: Write the proportion equation
13,065,389.48 : 18,031,247.44 = 7,838,594.35 : x - Step 2: Convert to fraction form
13,065,389.48/18,031,247.44 = 7,838,594.35/x - Step 3: Cross multiply
13,065,389.48x = 18,031,247.44 × 7,838,594.35 - Step 4: Simplify right side
13,065,389.48x = 141,339,634,241,961.38 - Step 5: Solve for x
x = 141,339,634,241,961.38/13,065,389.48 - Step 6: Final answer
x = 10,817,866.12
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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.