Finding the Fourth Proportional to 19,520,866.26, 29,249,281.71 and 13,830,933.78
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Solution
The fourth proportional to 19,520,866.26, 29,249,281.71 and 13,830,933.78 is: 20,723,715.49
Step by Step Solution
- Step 1: Write the proportion equation
19,520,866.26 : 29,249,281.71 = 13,830,933.78 : x - Step 2: Convert to fraction form
19,520,866.26/29,249,281.71 = 13,830,933.78/x - Step 3: Cross multiply
19,520,866.26x = 29,249,281.71 × 13,830,933.78 - Step 4: Simplify right side
19,520,866.26x = 404,544,878,443,575.19 - Step 5: Solve for x
x = 404,544,878,443,575.19/19,520,866.26 - Step 6: Final answer
x = 20,723,715.49
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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.