Finding the Fourth Proportional to 1,778,118,415.80, 2,667,177,623.70 and 1,678,349,225.40
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Solution
The fourth proportional to 1,778,118,415.80, 2,667,177,623.70 and 1,678,349,225.40 is: 2,517,523,838.10
Step by Step Solution
- Step 1: Write the proportion equation
1,778,118,415.80 : 2,667,177,623.70 = 1,678,349,225.40 : x - Step 2: Convert to fraction form
1,778,118,415.80/2,667,177,623.70 = 1,678,349,225.40/x - Step 3: Cross multiply
1,778,118,415.80x = 2,667,177,623.70 × 1,678,349,225.40 - Step 4: Simplify right side
1,778,118,415.80x = 4,476,455,498,741,107,712 - Step 5: Solve for x
x = 4,476,455,498,741,107,712/1,778,118,415.80 - Step 6: Final answer
x = 2,517,523,838.10
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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.