Finding the Fourth Proportional to 13,221,491.70, 19,832,237.55 and 11,541,875.70
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Solution
The fourth proportional to 13,221,491.70, 19,832,237.55 and 11,541,875.70 is: 17,312,813.55
Step by Step Solution
- Step 1: Write the proportion equation
13,221,491.70 : 19,832,237.55 = 11,541,875.70 : x - Step 2: Convert to fraction form
13,221,491.70/19,832,237.55 = 11,541,875.70/x - Step 3: Cross multiply
13,221,491.70x = 19,832,237.55 × 11,541,875.70 - Step 4: Simplify right side
13,221,491.70x = 228,901,220,654,972.53 - Step 5: Solve for x
x = 228,901,220,654,972.53/13,221,491.70 - Step 6: Final answer
x = 17,312,813.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.