Finding the Fourth Proportional to 249,839,533.93, 344,789,331.20 and 138,330,377.05
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Solution
The fourth proportional to 249,839,533.93, 344,789,331.20 and 138,330,377.05 is: 190,901,885.85
Step by Step Solution
- Step 1: Write the proportion equation
249,839,533.93 : 344,789,331.20 = 138,330,377.05 : x - Step 2: Convert to fraction form
249,839,533.93/344,789,331.20 = 138,330,377.05/x - Step 3: Cross multiply
249,839,533.93x = 344,789,331.20 × 138,330,377.05 - Step 4: Simplify right side
249,839,533.93x = 47,694,838,187,713,328 - Step 5: Solve for x
x = 47,694,838,187,713,328/249,839,533.93 - Step 6: Final answer
x = 190,901,885.85
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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.