Finding the Fourth Proportional to 38,922,905.64, 53,710,780.68 and 21,519,459.48
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Solution
The fourth proportional to 38,922,905.64, 53,710,780.68 and 21,519,459.48 is: 29,695,289.95
Step by Step Solution
- Step 1: Write the proportion equation
38,922,905.64 : 53,710,780.68 = 21,519,459.48 : x - Step 2: Convert to fraction form
38,922,905.64/53,710,780.68 = 21,519,459.48/x - Step 3: Cross multiply
38,922,905.64x = 53,710,780.68 × 21,519,459.48 - Step 4: Simplify right side
38,922,905.64x = 1,155,826,968,482,426.75 - Step 5: Solve for x
x = 1,155,826,968,482,426.75/38,922,905.64 - Step 6: Final answer
x = 29,695,289.95
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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.