Finding the Fourth Proportional to 249,747,283.86, 344,643,769.57 and 138,242,695.20
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Solution
The fourth proportional to 249,747,283.86, 344,643,769.57 and 138,242,695.20 is: 190,770,777.78
Step by Step Solution
- Step 1: Write the proportion equation
249,747,283.86 : 344,643,769.57 = 138,242,695.20 : x - Step 2: Convert to fraction form
249,747,283.86/344,643,769.57 = 138,242,695.20/x - Step 3: Cross multiply
249,747,283.86x = 344,643,769.57 × 138,242,695.20 - Step 4: Simplify right side
249,747,283.86x = 47,644,483,589,244,536 - Step 5: Solve for x
x = 47,644,483,589,244,536/249,747,283.86 - Step 6: Final answer
x = 190,770,777.78
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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.