Finding the Fourth Proportional to 249,987,075.08, 344,984,922.90 and 138,479,623.88
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Solution
The fourth proportional to 249,987,075.08, 344,984,922.90 and 138,479,623.88 is: 191,103,409.45
Step by Step Solution
- Step 1: Write the proportion equation
249,987,075.08 : 344,984,922.90 = 138,479,623.88 : x - Step 2: Convert to fraction form
249,987,075.08/344,984,922.90 = 138,479,623.88/x - Step 3: Cross multiply
249,987,075.08x = 344,984,922.90 × 138,479,623.88 - Step 4: Simplify right side
249,987,075.08x = 47,773,382,367,462,792 - Step 5: Solve for x
x = 47,773,382,367,462,792/249,987,075.08 - Step 6: Final answer
x = 191,103,409.45
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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.