Finding the Fourth Proportional to 80,705,585,144.49, 121,011,542,422.26 and 38,210,125,645.47
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Solution
The fourth proportional to 80,705,585,144.49, 121,011,542,422.26 and 38,210,125,645.47 is: 57,293,014,259.53
Step by Step Solution
- Step 1: Write the proportion equation
80,705,585,144.49 : 121,011,542,422.26 = 38,210,125,645.47 : x - Step 2: Convert to fraction form
80,705,585,144.49/121,011,542,422.26 = 38,210,125,645.47/x - Step 3: Cross multiply
80,705,585,144.49x = 121,011,542,422.26 × 38,210,125,645.47 - Step 4: Simplify right side
80,705,585,144.49x = 4,623,866,240,506,677,690,368 - Step 5: Solve for x
x = 4,623,866,240,506,677,690,368/80,705,585,144.49 - Step 6: Final answer
x = 57,293,014,259.53
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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.