Finding the Fourth Proportional to 13,376,722.37, 18,459,259.43 and 7,575,545.70
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Solution
The fourth proportional to 13,376,722.37, 18,459,259.43 and 7,575,545.70 is: 10,453,903.40
Step by Step Solution
- Step 1: Write the proportion equation
13,376,722.37 : 18,459,259.43 = 7,575,545.70 : x - Step 2: Convert to fraction form
13,376,722.37/18,459,259.43 = 7,575,545.70/x - Step 3: Cross multiply
13,376,722.37x = 18,459,259.43 × 7,575,545.70 - Step 4: Simplify right side
13,376,722.37x = 139,838,963,362,243.23 - Step 5: Solve for x
x = 139,838,963,362,243.23/13,376,722.37 - Step 6: Final answer
x = 10,453,903.40
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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.