Finding the Fourth Proportional to 19,497,875.31, 29,235,879.18 and 13,356,795.51
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Solution
The fourth proportional to 19,497,875.31, 29,235,879.18 and 13,356,795.51 is: 20,027,703.20
Step by Step Solution
- Step 1: Write the proportion equation
19,497,875.31 : 29,235,879.18 = 13,356,795.51 : x - Step 2: Convert to fraction form
19,497,875.31/29,235,879.18 = 13,356,795.51/x - Step 3: Cross multiply
19,497,875.31x = 29,235,879.18 × 13,356,795.51 - Step 4: Simplify right side
19,497,875.31x = 390,497,659,762,326.50 - Step 5: Solve for x
x = 390,497,659,762,326.50/19,497,875.31 - Step 6: Final answer
x = 20,027,703.20
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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.