Finding the Fourth Proportional to 1,778,118,421.80, 2,667,177,632.70 and 1,678,349,231.40
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Solution
The fourth proportional to 1,778,118,421.80, 2,667,177,632.70 and 1,678,349,231.40 is: 2,517,523,847.10
Step by Step Solution
- Step 1: Write the proportion equation
1,778,118,421.80 : 2,667,177,632.70 = 1,678,349,231.40 : x - Step 2: Convert to fraction form
1,778,118,421.80/2,667,177,632.70 = 1,678,349,231.40/x - Step 3: Cross multiply
1,778,118,421.80x = 2,667,177,632.70 × 1,678,349,231.40 - Step 4: Simplify right side
1,778,118,421.80x = 4,476,455,529,849,316,352 - Step 5: Solve for x
x = 4,476,455,529,849,316,352/1,778,118,421.80 - Step 6: Final answer
x = 2,517,523,847.10
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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.