Finding the Fourth Proportional to 19,382,803.60, 29,011,219.80 and 19,382,803.60
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Solution
The fourth proportional to 19,382,803.60, 29,011,219.80 and 19,382,803.60 is: 29,011,219.80
Step by Step Solution
- Step 1: Write the proportion equation
19,382,803.60 : 29,011,219.80 = 19,382,803.60 : x - Step 2: Convert to fraction form
19,382,803.60/29,011,219.80 = 19,382,803.60/x - Step 3: Cross multiply
19,382,803.60x = 29,011,219.80 × 19,382,803.60 - Step 4: Simplify right side
19,382,803.60x = 562,318,775,579,831.31 - Step 5: Solve for x
x = 562,318,775,579,831.31/19,382,803.60 - Step 6: Final answer
x = 29,011,219.80
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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.